string empty percent
string empty percent checks
Description
Column level check that ensures that there are no more than a maximum percent of empty strings in a monitored column.
profile string empty percent
Check description
Verifies that the percentage of empty strings in a column does not exceed the maximum accepted percentage.
| Check name | Check type | Time scale | Sensor definition | Quality rule |
|---|---|---|---|---|
| profile_string_empty_percent | profiling | string_empty_percent | max_percent |
Enable check (Shell)
To enable this check provide connection name and check name in check enable command
To run this check provide check name in check run command It is also possible to run this check on a specific connection. In order to do this, add the connection name to the below It is additionally feasible to run this check on a specific table. In order to do this, add the table name to the below It is furthermore viable to combine run this check on a specific column. In order to do this, add the column name to the below Check structure (Yaml)
profiling_checks:
strings:
profile_string_empty_percent:
warning:
max_percent: 1.0
error:
max_percent: 2.0
fatal:
max_percent: 5.0
# yaml-language-server: $schema=https://cloud.dqo.ai/dqo-yaml-schema/TableYaml-schema.json
apiVersion: dqo/v1
kind: table
spec:
timestamp_columns:
event_timestamp_column: col_event_timestamp
ingestion_timestamp_column: col_inserted_at
incremental_time_window:
daily_partitioning_recent_days: 7
monthly_partitioning_recent_months: 1
columns:
target_column:
profiling_checks:
strings:
profile_string_empty_percent:
warning:
max_percent: 1.0
error:
max_percent: 2.0
fatal:
max_percent: 5.0
labels:
- This is the column that is analyzed for data quality issues
col_event_timestamp:
labels:
- optional column that stores the timestamp when the event/transaction happened
col_inserted_at:
labels:
- optional column that stores the timestamp when row was ingested
BigQuery
{% import '/dialects/bigquery.sql.jinja2' as lib with context -%}
{% macro render_column_cast_to_string(analyzed_table_to_render) -%}
{%- if (lib.target_column_data_type == 'STRING') -%}
{{ lib.render_target_column(analyzed_table_to_render) }}
{%- elif (lib.target_column_data_type == 'BIGNUMERIC') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DECIMAL') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BIGDECIMAL') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'FLOAT64') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INT64') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'NUMERIC') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'SMALLINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INTEGER') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BIGINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TINYINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BYTEINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DATE') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DATETIME') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TIME') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TIMESTAMP') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BOOLEAN') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- else -%}
{{ lib.render_target_column(analyzed_table_to_render) }}
{%- endif -%}
{% endmacro -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ render_column_cast_to_string('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.`target_column` IS NOT NULL
AND analyzed_table.`target_column` = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
DATE_TRUNC(CAST(CURRENT_TIMESTAMP() AS DATE), MONTH) AS time_period,
TIMESTAMP(DATE_TRUNC(CAST(CURRENT_TIMESTAMP() AS DATE), MONTH)) AS time_period_utc
FROM `your-google-project-id`.`<target_schema>`.`<target_table>` AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
MySQL
{% import '/dialects/mysql.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ lib.render_target_column('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.`target_column` IS NOT NULL
AND analyzed_table.`target_column` = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
DATE_FORMAT(LOCALTIMESTAMP, '%Y-%m-01 00:00:00') AS time_period,
FROM_UNIXTIME(UNIX_TIMESTAMP(DATE_FORMAT(LOCALTIMESTAMP, '%Y-%m-01 00:00:00'))) AS time_period_utc
FROM `<target_table>` AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
Oracle
{% import '/dialects/oracle.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ lib.render_target_column('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections_reference('analyzed_table') }}
{{- lib.render_time_dimension_projection_reference('analyzed_table') }}
FROM(
SELECT
original_table.*
{{- lib.render_data_grouping_projections('original_table') }}
{{- lib.render_time_dimension_projection('original_table') }}
FROM {{ lib.render_target_table() }} original_table
{{- lib.render_where_clause(table_alias_prefix='original_table') }}) analyzed_table
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND analyzed_table."target_column" = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
time_period,
time_period_utc
FROM(
SELECT
original_table.*,
TRUNC(CAST(CURRENT_TIMESTAMP AS DATE), 'MONTH') AS time_period,
CAST(TRUNC(CAST(CURRENT_TIMESTAMP AS DATE), 'MONTH') AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "<target_schema>"."<target_table>" original_table) analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
PostgreSQL
{% import '/dialects/postgresql.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
DATE_TRUNC('MONTH', CAST(LOCALTIMESTAMP AS date)) AS time_period,
CAST((DATE_TRUNC('MONTH', CAST(LOCALTIMESTAMP AS date))) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "your_postgresql_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
Redshift
{% import '/dialects/redshift.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
DATE_TRUNC('MONTH', CAST(LOCALTIMESTAMP AS date)) AS time_period,
CAST((DATE_TRUNC('MONTH', CAST(LOCALTIMESTAMP AS date))) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "your_redshift_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
Snowflake
{% import '/dialects/snowflake.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
DATE_TRUNC('MONTH', CAST(TO_TIMESTAMP_NTZ(LOCALTIMESTAMP()) AS date)) AS time_period,
TO_TIMESTAMP(DATE_TRUNC('MONTH', CAST(TO_TIMESTAMP_NTZ(LOCALTIMESTAMP()) AS date))) AS time_period_utc
FROM "your_snowflake_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
SQL Server
{% import '/dialects/sqlserver.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT_BIG(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LEN({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT_BIG(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT_BIG(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.[target_column] IS NOT NULL
AND LEN(analyzed_table.[target_column]) = 0
THEN 1
ELSE 0
END
) / COUNT_BIG(*)
END AS actual_value,
DATEADD(month, DATEDIFF(month, 0, SYSDATETIMEOFFSET()), 0) AS time_period,
CAST((DATEADD(month, DATEDIFF(month, 0, SYSDATETIMEOFFSET()), 0)) AS DATETIME) AS time_period_utc
FROM [your_sql_server_database].[<target_schema>].[<target_table>] AS analyzed_table
Configuration with data grouping
Click to see more
Sample configuration (Yaml)
# yaml-language-server: $schema=https://cloud.dqo.ai/dqo-yaml-schema/TableYaml-schema.json
apiVersion: dqo/v1
kind: table
spec:
timestamp_columns:
event_timestamp_column: col_event_timestamp
ingestion_timestamp_column: col_inserted_at
incremental_time_window:
daily_partitioning_recent_days: 7
monthly_partitioning_recent_months: 1
default_grouping_name: group_by_country_and_state
groupings:
group_by_country_and_state:
level_1:
source: column_value
column: country
level_2:
source: column_value
column: state
columns:
target_column:
profiling_checks:
strings:
profile_string_empty_percent:
warning:
max_percent: 1.0
error:
max_percent: 2.0
fatal:
max_percent: 5.0
labels:
- This is the column that is analyzed for data quality issues
col_event_timestamp:
labels:
- optional column that stores the timestamp when the event/transaction happened
col_inserted_at:
labels:
- optional column that stores the timestamp when row was ingested
country:
labels:
- column used as the first grouping key
state:
labels:
- column used as the second grouping key
{% import '/dialects/bigquery.sql.jinja2' as lib with context -%}
{% macro render_column_cast_to_string(analyzed_table_to_render) -%}
{%- if (lib.target_column_data_type == 'STRING') -%}
{{ lib.render_target_column(analyzed_table_to_render) }}
{%- elif (lib.target_column_data_type == 'BIGNUMERIC') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DECIMAL') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BIGDECIMAL') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'FLOAT64') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INT64') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'NUMERIC') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'SMALLINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INTEGER') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BIGINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TINYINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BYTEINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DATE') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DATETIME') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TIME') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TIMESTAMP') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BOOLEAN') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- else -%}
{{ lib.render_target_column(analyzed_table_to_render) }}
{%- endif -%}
{% endmacro -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ render_column_cast_to_string('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.`target_column` IS NOT NULL
AND analyzed_table.`target_column` = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table.`country` AS grouping_level_1,
analyzed_table.`state` AS grouping_level_2,
DATE_TRUNC(CAST(CURRENT_TIMESTAMP() AS DATE), MONTH) AS time_period,
TIMESTAMP(DATE_TRUNC(CAST(CURRENT_TIMESTAMP() AS DATE), MONTH)) AS time_period_utc
FROM `your-google-project-id`.`<target_schema>`.`<target_table>` AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
MySQL
{% import '/dialects/mysql.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ lib.render_target_column('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.`target_column` IS NOT NULL
AND analyzed_table.`target_column` = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table.`country` AS grouping_level_1,
analyzed_table.`state` AS grouping_level_2,
DATE_FORMAT(LOCALTIMESTAMP, '%Y-%m-01 00:00:00') AS time_period,
FROM_UNIXTIME(UNIX_TIMESTAMP(DATE_FORMAT(LOCALTIMESTAMP, '%Y-%m-01 00:00:00'))) AS time_period_utc
FROM `<target_table>` AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
Oracle
{% import '/dialects/oracle.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ lib.render_target_column('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections_reference('analyzed_table') }}
{{- lib.render_time_dimension_projection_reference('analyzed_table') }}
FROM(
SELECT
original_table.*
{{- lib.render_data_grouping_projections('original_table') }}
{{- lib.render_time_dimension_projection('original_table') }}
FROM {{ lib.render_target_table() }} original_table
{{- lib.render_where_clause(table_alias_prefix='original_table') }}) analyzed_table
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND analyzed_table."target_column" = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table.grouping_level_1,
analyzed_table.grouping_level_2
,
time_period,
time_period_utc
FROM(
SELECT
original_table.*,
original_table."country" AS grouping_level_1,
original_table."state" AS grouping_level_2,
TRUNC(CAST(CURRENT_TIMESTAMP AS DATE), 'MONTH') AS time_period,
CAST(TRUNC(CAST(CURRENT_TIMESTAMP AS DATE), 'MONTH') AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "<target_schema>"."<target_table>" original_table) analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
PostgreSQL
{% import '/dialects/postgresql.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table."country" AS grouping_level_1,
analyzed_table."state" AS grouping_level_2,
DATE_TRUNC('MONTH', CAST(LOCALTIMESTAMP AS date)) AS time_period,
CAST((DATE_TRUNC('MONTH', CAST(LOCALTIMESTAMP AS date))) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "your_postgresql_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
Redshift
{% import '/dialects/redshift.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table."country" AS grouping_level_1,
analyzed_table."state" AS grouping_level_2,
DATE_TRUNC('MONTH', CAST(LOCALTIMESTAMP AS date)) AS time_period,
CAST((DATE_TRUNC('MONTH', CAST(LOCALTIMESTAMP AS date))) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "your_redshift_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
Snowflake
{% import '/dialects/snowflake.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table."country" AS grouping_level_1,
analyzed_table."state" AS grouping_level_2,
DATE_TRUNC('MONTH', CAST(TO_TIMESTAMP_NTZ(LOCALTIMESTAMP()) AS date)) AS time_period,
TO_TIMESTAMP(DATE_TRUNC('MONTH', CAST(TO_TIMESTAMP_NTZ(LOCALTIMESTAMP()) AS date))) AS time_period_utc
FROM "your_snowflake_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
SQL Server
{% import '/dialects/sqlserver.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT_BIG(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LEN({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT_BIG(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT_BIG(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.[target_column] IS NOT NULL
AND LEN(analyzed_table.[target_column]) = 0
THEN 1
ELSE 0
END
) / COUNT_BIG(*)
END AS actual_value,
analyzed_table.[country] AS grouping_level_1,
analyzed_table.[state] AS grouping_level_2,
DATEADD(month, DATEDIFF(month, 0, SYSDATETIMEOFFSET()), 0) AS time_period,
CAST((DATEADD(month, DATEDIFF(month, 0, SYSDATETIMEOFFSET()), 0)) AS DATETIME) AS time_period_utc
FROM [your_sql_server_database].[<target_schema>].[<target_table>] AS analyzed_table
GROUP BY analyzed_table.[country], analyzed_table.[state]
ORDER BY level_1, level_2
,
daily string empty percent
Check description
Verifies that the percentage of empty strings in a column does not exceed the maximum accepted percentage. Stores the most recent captured value for each day when the data quality check was evaluated.
| Check name | Check type | Time scale | Sensor definition | Quality rule |
|---|---|---|---|---|
| daily_string_empty_percent | recurring | daily | string_empty_percent | max_percent |
Enable check (Shell)
To enable this check provide connection name and check name in check enable command
To run this check provide check name in check run command It is also possible to run this check on a specific connection. In order to do this, add the connection name to the below It is additionally feasible to run this check on a specific table. In order to do this, add the table name to the below It is furthermore viable to combine run this check on a specific column. In order to do this, add the column name to the below Check structure (Yaml)
recurring_checks:
daily:
strings:
daily_string_empty_percent:
warning:
max_percent: 1.0
error:
max_percent: 2.0
fatal:
max_percent: 5.0
# yaml-language-server: $schema=https://cloud.dqo.ai/dqo-yaml-schema/TableYaml-schema.json
apiVersion: dqo/v1
kind: table
spec:
timestamp_columns:
event_timestamp_column: col_event_timestamp
ingestion_timestamp_column: col_inserted_at
incremental_time_window:
daily_partitioning_recent_days: 7
monthly_partitioning_recent_months: 1
columns:
target_column:
recurring_checks:
daily:
strings:
daily_string_empty_percent:
warning:
max_percent: 1.0
error:
max_percent: 2.0
fatal:
max_percent: 5.0
labels:
- This is the column that is analyzed for data quality issues
col_event_timestamp:
labels:
- optional column that stores the timestamp when the event/transaction happened
col_inserted_at:
labels:
- optional column that stores the timestamp when row was ingested
BigQuery
{% import '/dialects/bigquery.sql.jinja2' as lib with context -%}
{% macro render_column_cast_to_string(analyzed_table_to_render) -%}
{%- if (lib.target_column_data_type == 'STRING') -%}
{{ lib.render_target_column(analyzed_table_to_render) }}
{%- elif (lib.target_column_data_type == 'BIGNUMERIC') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DECIMAL') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BIGDECIMAL') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'FLOAT64') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INT64') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'NUMERIC') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'SMALLINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INTEGER') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BIGINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TINYINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BYTEINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DATE') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DATETIME') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TIME') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TIMESTAMP') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BOOLEAN') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- else -%}
{{ lib.render_target_column(analyzed_table_to_render) }}
{%- endif -%}
{% endmacro -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ render_column_cast_to_string('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.`target_column` IS NOT NULL
AND analyzed_table.`target_column` = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
CAST(CURRENT_TIMESTAMP() AS DATE) AS time_period,
TIMESTAMP(CAST(CURRENT_TIMESTAMP() AS DATE)) AS time_period_utc
FROM `your-google-project-id`.`<target_schema>`.`<target_table>` AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
MySQL
{% import '/dialects/mysql.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ lib.render_target_column('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.`target_column` IS NOT NULL
AND analyzed_table.`target_column` = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
DATE_FORMAT(LOCALTIMESTAMP, '%Y-%m-%d 00:00:00') AS time_period,
FROM_UNIXTIME(UNIX_TIMESTAMP(DATE_FORMAT(LOCALTIMESTAMP, '%Y-%m-%d 00:00:00'))) AS time_period_utc
FROM `<target_table>` AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
Oracle
{% import '/dialects/oracle.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ lib.render_target_column('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections_reference('analyzed_table') }}
{{- lib.render_time_dimension_projection_reference('analyzed_table') }}
FROM(
SELECT
original_table.*
{{- lib.render_data_grouping_projections('original_table') }}
{{- lib.render_time_dimension_projection('original_table') }}
FROM {{ lib.render_target_table() }} original_table
{{- lib.render_where_clause(table_alias_prefix='original_table') }}) analyzed_table
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND analyzed_table."target_column" = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
time_period,
time_period_utc
FROM(
SELECT
original_table.*,
TRUNC(CAST(CURRENT_TIMESTAMP AS DATE)) AS time_period,
CAST(TRUNC(CAST(CURRENT_TIMESTAMP AS DATE)) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "<target_schema>"."<target_table>" original_table) analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
PostgreSQL
{% import '/dialects/postgresql.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
CAST(LOCALTIMESTAMP AS date) AS time_period,
CAST((CAST(LOCALTIMESTAMP AS date)) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "your_postgresql_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
Redshift
{% import '/dialects/redshift.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
CAST(LOCALTIMESTAMP AS date) AS time_period,
CAST((CAST(LOCALTIMESTAMP AS date)) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "your_redshift_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
Snowflake
{% import '/dialects/snowflake.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
CAST(TO_TIMESTAMP_NTZ(LOCALTIMESTAMP()) AS date) AS time_period,
TO_TIMESTAMP(CAST(TO_TIMESTAMP_NTZ(LOCALTIMESTAMP()) AS date)) AS time_period_utc
FROM "your_snowflake_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
SQL Server
{% import '/dialects/sqlserver.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT_BIG(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LEN({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT_BIG(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT_BIG(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.[target_column] IS NOT NULL
AND LEN(analyzed_table.[target_column]) = 0
THEN 1
ELSE 0
END
) / COUNT_BIG(*)
END AS actual_value,
CAST(SYSDATETIMEOFFSET() AS date) AS time_period,
CAST((CAST(SYSDATETIMEOFFSET() AS date)) AS DATETIME) AS time_period_utc
FROM [your_sql_server_database].[<target_schema>].[<target_table>] AS analyzed_table
Configuration with data grouping
Click to see more
Sample configuration (Yaml)
# yaml-language-server: $schema=https://cloud.dqo.ai/dqo-yaml-schema/TableYaml-schema.json
apiVersion: dqo/v1
kind: table
spec:
timestamp_columns:
event_timestamp_column: col_event_timestamp
ingestion_timestamp_column: col_inserted_at
incremental_time_window:
daily_partitioning_recent_days: 7
monthly_partitioning_recent_months: 1
default_grouping_name: group_by_country_and_state
groupings:
group_by_country_and_state:
level_1:
source: column_value
column: country
level_2:
source: column_value
column: state
columns:
target_column:
recurring_checks:
daily:
strings:
daily_string_empty_percent:
warning:
max_percent: 1.0
error:
max_percent: 2.0
fatal:
max_percent: 5.0
labels:
- This is the column that is analyzed for data quality issues
col_event_timestamp:
labels:
- optional column that stores the timestamp when the event/transaction happened
col_inserted_at:
labels:
- optional column that stores the timestamp when row was ingested
country:
labels:
- column used as the first grouping key
state:
labels:
- column used as the second grouping key
{% import '/dialects/bigquery.sql.jinja2' as lib with context -%}
{% macro render_column_cast_to_string(analyzed_table_to_render) -%}
{%- if (lib.target_column_data_type == 'STRING') -%}
{{ lib.render_target_column(analyzed_table_to_render) }}
{%- elif (lib.target_column_data_type == 'BIGNUMERIC') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DECIMAL') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BIGDECIMAL') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'FLOAT64') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INT64') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'NUMERIC') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'SMALLINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INTEGER') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BIGINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TINYINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BYTEINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DATE') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DATETIME') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TIME') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TIMESTAMP') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BOOLEAN') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- else -%}
{{ lib.render_target_column(analyzed_table_to_render) }}
{%- endif -%}
{% endmacro -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ render_column_cast_to_string('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.`target_column` IS NOT NULL
AND analyzed_table.`target_column` = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table.`country` AS grouping_level_1,
analyzed_table.`state` AS grouping_level_2,
CAST(CURRENT_TIMESTAMP() AS DATE) AS time_period,
TIMESTAMP(CAST(CURRENT_TIMESTAMP() AS DATE)) AS time_period_utc
FROM `your-google-project-id`.`<target_schema>`.`<target_table>` AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
MySQL
{% import '/dialects/mysql.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ lib.render_target_column('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.`target_column` IS NOT NULL
AND analyzed_table.`target_column` = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table.`country` AS grouping_level_1,
analyzed_table.`state` AS grouping_level_2,
DATE_FORMAT(LOCALTIMESTAMP, '%Y-%m-%d 00:00:00') AS time_period,
FROM_UNIXTIME(UNIX_TIMESTAMP(DATE_FORMAT(LOCALTIMESTAMP, '%Y-%m-%d 00:00:00'))) AS time_period_utc
FROM `<target_table>` AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
Oracle
{% import '/dialects/oracle.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ lib.render_target_column('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections_reference('analyzed_table') }}
{{- lib.render_time_dimension_projection_reference('analyzed_table') }}
FROM(
SELECT
original_table.*
{{- lib.render_data_grouping_projections('original_table') }}
{{- lib.render_time_dimension_projection('original_table') }}
FROM {{ lib.render_target_table() }} original_table
{{- lib.render_where_clause(table_alias_prefix='original_table') }}) analyzed_table
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND analyzed_table."target_column" = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table.grouping_level_1,
analyzed_table.grouping_level_2
,
time_period,
time_period_utc
FROM(
SELECT
original_table.*,
original_table."country" AS grouping_level_1,
original_table."state" AS grouping_level_2,
TRUNC(CAST(CURRENT_TIMESTAMP AS DATE)) AS time_period,
CAST(TRUNC(CAST(CURRENT_TIMESTAMP AS DATE)) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "<target_schema>"."<target_table>" original_table) analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
PostgreSQL
{% import '/dialects/postgresql.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table."country" AS grouping_level_1,
analyzed_table."state" AS grouping_level_2,
CAST(LOCALTIMESTAMP AS date) AS time_period,
CAST((CAST(LOCALTIMESTAMP AS date)) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "your_postgresql_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
Redshift
{% import '/dialects/redshift.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table."country" AS grouping_level_1,
analyzed_table."state" AS grouping_level_2,
CAST(LOCALTIMESTAMP AS date) AS time_period,
CAST((CAST(LOCALTIMESTAMP AS date)) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "your_redshift_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
Snowflake
{% import '/dialects/snowflake.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table."country" AS grouping_level_1,
analyzed_table."state" AS grouping_level_2,
CAST(TO_TIMESTAMP_NTZ(LOCALTIMESTAMP()) AS date) AS time_period,
TO_TIMESTAMP(CAST(TO_TIMESTAMP_NTZ(LOCALTIMESTAMP()) AS date)) AS time_period_utc
FROM "your_snowflake_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
SQL Server
{% import '/dialects/sqlserver.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT_BIG(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LEN({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT_BIG(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT_BIG(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.[target_column] IS NOT NULL
AND LEN(analyzed_table.[target_column]) = 0
THEN 1
ELSE 0
END
) / COUNT_BIG(*)
END AS actual_value,
analyzed_table.[country] AS grouping_level_1,
analyzed_table.[state] AS grouping_level_2,
CAST(SYSDATETIMEOFFSET() AS date) AS time_period,
CAST((CAST(SYSDATETIMEOFFSET() AS date)) AS DATETIME) AS time_period_utc
FROM [your_sql_server_database].[<target_schema>].[<target_table>] AS analyzed_table
GROUP BY analyzed_table.[country], analyzed_table.[state]
ORDER BY level_1, level_2
,
monthly string empty percent
Check description
Verifies that the percentage of empty strings in a column does not exceed the maximum accepted percentage. Stores the most recent row count for each month when the data quality check was evaluated.
| Check name | Check type | Time scale | Sensor definition | Quality rule |
|---|---|---|---|---|
| monthly_string_empty_percent | recurring | monthly | string_empty_percent | max_percent |
Enable check (Shell)
To enable this check provide connection name and check name in check enable command
To run this check provide check name in check run command It is also possible to run this check on a specific connection. In order to do this, add the connection name to the below It is additionally feasible to run this check on a specific table. In order to do this, add the table name to the below It is furthermore viable to combine run this check on a specific column. In order to do this, add the column name to the below Check structure (Yaml)
recurring_checks:
monthly:
strings:
monthly_string_empty_percent:
warning:
max_percent: 1.0
error:
max_percent: 2.0
fatal:
max_percent: 5.0
# yaml-language-server: $schema=https://cloud.dqo.ai/dqo-yaml-schema/TableYaml-schema.json
apiVersion: dqo/v1
kind: table
spec:
timestamp_columns:
event_timestamp_column: col_event_timestamp
ingestion_timestamp_column: col_inserted_at
incremental_time_window:
daily_partitioning_recent_days: 7
monthly_partitioning_recent_months: 1
columns:
target_column:
recurring_checks:
monthly:
strings:
monthly_string_empty_percent:
warning:
max_percent: 1.0
error:
max_percent: 2.0
fatal:
max_percent: 5.0
labels:
- This is the column that is analyzed for data quality issues
col_event_timestamp:
labels:
- optional column that stores the timestamp when the event/transaction happened
col_inserted_at:
labels:
- optional column that stores the timestamp when row was ingested
BigQuery
{% import '/dialects/bigquery.sql.jinja2' as lib with context -%}
{% macro render_column_cast_to_string(analyzed_table_to_render) -%}
{%- if (lib.target_column_data_type == 'STRING') -%}
{{ lib.render_target_column(analyzed_table_to_render) }}
{%- elif (lib.target_column_data_type == 'BIGNUMERIC') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DECIMAL') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BIGDECIMAL') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'FLOAT64') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INT64') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'NUMERIC') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'SMALLINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INTEGER') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BIGINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TINYINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BYTEINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DATE') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DATETIME') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TIME') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TIMESTAMP') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BOOLEAN') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- else -%}
{{ lib.render_target_column(analyzed_table_to_render) }}
{%- endif -%}
{% endmacro -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ render_column_cast_to_string('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.`target_column` IS NOT NULL
AND analyzed_table.`target_column` = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
DATE_TRUNC(CAST(CURRENT_TIMESTAMP() AS DATE), MONTH) AS time_period,
TIMESTAMP(DATE_TRUNC(CAST(CURRENT_TIMESTAMP() AS DATE), MONTH)) AS time_period_utc
FROM `your-google-project-id`.`<target_schema>`.`<target_table>` AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
MySQL
{% import '/dialects/mysql.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ lib.render_target_column('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.`target_column` IS NOT NULL
AND analyzed_table.`target_column` = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
DATE_FORMAT(LOCALTIMESTAMP, '%Y-%m-01 00:00:00') AS time_period,
FROM_UNIXTIME(UNIX_TIMESTAMP(DATE_FORMAT(LOCALTIMESTAMP, '%Y-%m-01 00:00:00'))) AS time_period_utc
FROM `<target_table>` AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
Oracle
{% import '/dialects/oracle.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ lib.render_target_column('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections_reference('analyzed_table') }}
{{- lib.render_time_dimension_projection_reference('analyzed_table') }}
FROM(
SELECT
original_table.*
{{- lib.render_data_grouping_projections('original_table') }}
{{- lib.render_time_dimension_projection('original_table') }}
FROM {{ lib.render_target_table() }} original_table
{{- lib.render_where_clause(table_alias_prefix='original_table') }}) analyzed_table
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND analyzed_table."target_column" = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
time_period,
time_period_utc
FROM(
SELECT
original_table.*,
TRUNC(CAST(CURRENT_TIMESTAMP AS DATE), 'MONTH') AS time_period,
CAST(TRUNC(CAST(CURRENT_TIMESTAMP AS DATE), 'MONTH') AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "<target_schema>"."<target_table>" original_table) analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
PostgreSQL
{% import '/dialects/postgresql.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
DATE_TRUNC('MONTH', CAST(LOCALTIMESTAMP AS date)) AS time_period,
CAST((DATE_TRUNC('MONTH', CAST(LOCALTIMESTAMP AS date))) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "your_postgresql_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
Redshift
{% import '/dialects/redshift.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
DATE_TRUNC('MONTH', CAST(LOCALTIMESTAMP AS date)) AS time_period,
CAST((DATE_TRUNC('MONTH', CAST(LOCALTIMESTAMP AS date))) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "your_redshift_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
Snowflake
{% import '/dialects/snowflake.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
DATE_TRUNC('MONTH', CAST(TO_TIMESTAMP_NTZ(LOCALTIMESTAMP()) AS date)) AS time_period,
TO_TIMESTAMP(DATE_TRUNC('MONTH', CAST(TO_TIMESTAMP_NTZ(LOCALTIMESTAMP()) AS date))) AS time_period_utc
FROM "your_snowflake_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
SQL Server
{% import '/dialects/sqlserver.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT_BIG(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LEN({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT_BIG(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT_BIG(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.[target_column] IS NOT NULL
AND LEN(analyzed_table.[target_column]) = 0
THEN 1
ELSE 0
END
) / COUNT_BIG(*)
END AS actual_value,
DATEADD(month, DATEDIFF(month, 0, SYSDATETIMEOFFSET()), 0) AS time_period,
CAST((DATEADD(month, DATEDIFF(month, 0, SYSDATETIMEOFFSET()), 0)) AS DATETIME) AS time_period_utc
FROM [your_sql_server_database].[<target_schema>].[<target_table>] AS analyzed_table
Configuration with data grouping
Click to see more
Sample configuration (Yaml)
# yaml-language-server: $schema=https://cloud.dqo.ai/dqo-yaml-schema/TableYaml-schema.json
apiVersion: dqo/v1
kind: table
spec:
timestamp_columns:
event_timestamp_column: col_event_timestamp
ingestion_timestamp_column: col_inserted_at
incremental_time_window:
daily_partitioning_recent_days: 7
monthly_partitioning_recent_months: 1
default_grouping_name: group_by_country_and_state
groupings:
group_by_country_and_state:
level_1:
source: column_value
column: country
level_2:
source: column_value
column: state
columns:
target_column:
recurring_checks:
monthly:
strings:
monthly_string_empty_percent:
warning:
max_percent: 1.0
error:
max_percent: 2.0
fatal:
max_percent: 5.0
labels:
- This is the column that is analyzed for data quality issues
col_event_timestamp:
labels:
- optional column that stores the timestamp when the event/transaction happened
col_inserted_at:
labels:
- optional column that stores the timestamp when row was ingested
country:
labels:
- column used as the first grouping key
state:
labels:
- column used as the second grouping key
{% import '/dialects/bigquery.sql.jinja2' as lib with context -%}
{% macro render_column_cast_to_string(analyzed_table_to_render) -%}
{%- if (lib.target_column_data_type == 'STRING') -%}
{{ lib.render_target_column(analyzed_table_to_render) }}
{%- elif (lib.target_column_data_type == 'BIGNUMERIC') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DECIMAL') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BIGDECIMAL') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'FLOAT64') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INT64') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'NUMERIC') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'SMALLINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INTEGER') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BIGINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TINYINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BYTEINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DATE') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DATETIME') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TIME') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TIMESTAMP') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BOOLEAN') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- else -%}
{{ lib.render_target_column(analyzed_table_to_render) }}
{%- endif -%}
{% endmacro -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ render_column_cast_to_string('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.`target_column` IS NOT NULL
AND analyzed_table.`target_column` = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table.`country` AS grouping_level_1,
analyzed_table.`state` AS grouping_level_2,
DATE_TRUNC(CAST(CURRENT_TIMESTAMP() AS DATE), MONTH) AS time_period,
TIMESTAMP(DATE_TRUNC(CAST(CURRENT_TIMESTAMP() AS DATE), MONTH)) AS time_period_utc
FROM `your-google-project-id`.`<target_schema>`.`<target_table>` AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
MySQL
{% import '/dialects/mysql.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ lib.render_target_column('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.`target_column` IS NOT NULL
AND analyzed_table.`target_column` = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table.`country` AS grouping_level_1,
analyzed_table.`state` AS grouping_level_2,
DATE_FORMAT(LOCALTIMESTAMP, '%Y-%m-01 00:00:00') AS time_period,
FROM_UNIXTIME(UNIX_TIMESTAMP(DATE_FORMAT(LOCALTIMESTAMP, '%Y-%m-01 00:00:00'))) AS time_period_utc
FROM `<target_table>` AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
Oracle
{% import '/dialects/oracle.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ lib.render_target_column('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections_reference('analyzed_table') }}
{{- lib.render_time_dimension_projection_reference('analyzed_table') }}
FROM(
SELECT
original_table.*
{{- lib.render_data_grouping_projections('original_table') }}
{{- lib.render_time_dimension_projection('original_table') }}
FROM {{ lib.render_target_table() }} original_table
{{- lib.render_where_clause(table_alias_prefix='original_table') }}) analyzed_table
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND analyzed_table."target_column" = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table.grouping_level_1,
analyzed_table.grouping_level_2
,
time_period,
time_period_utc
FROM(
SELECT
original_table.*,
original_table."country" AS grouping_level_1,
original_table."state" AS grouping_level_2,
TRUNC(CAST(CURRENT_TIMESTAMP AS DATE), 'MONTH') AS time_period,
CAST(TRUNC(CAST(CURRENT_TIMESTAMP AS DATE), 'MONTH') AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "<target_schema>"."<target_table>" original_table) analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
PostgreSQL
{% import '/dialects/postgresql.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table."country" AS grouping_level_1,
analyzed_table."state" AS grouping_level_2,
DATE_TRUNC('MONTH', CAST(LOCALTIMESTAMP AS date)) AS time_period,
CAST((DATE_TRUNC('MONTH', CAST(LOCALTIMESTAMP AS date))) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "your_postgresql_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
Redshift
{% import '/dialects/redshift.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table."country" AS grouping_level_1,
analyzed_table."state" AS grouping_level_2,
DATE_TRUNC('MONTH', CAST(LOCALTIMESTAMP AS date)) AS time_period,
CAST((DATE_TRUNC('MONTH', CAST(LOCALTIMESTAMP AS date))) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "your_redshift_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
Snowflake
{% import '/dialects/snowflake.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table."country" AS grouping_level_1,
analyzed_table."state" AS grouping_level_2,
DATE_TRUNC('MONTH', CAST(TO_TIMESTAMP_NTZ(LOCALTIMESTAMP()) AS date)) AS time_period,
TO_TIMESTAMP(DATE_TRUNC('MONTH', CAST(TO_TIMESTAMP_NTZ(LOCALTIMESTAMP()) AS date))) AS time_period_utc
FROM "your_snowflake_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
SQL Server
{% import '/dialects/sqlserver.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT_BIG(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LEN({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT_BIG(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT_BIG(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.[target_column] IS NOT NULL
AND LEN(analyzed_table.[target_column]) = 0
THEN 1
ELSE 0
END
) / COUNT_BIG(*)
END AS actual_value,
analyzed_table.[country] AS grouping_level_1,
analyzed_table.[state] AS grouping_level_2,
DATEADD(month, DATEDIFF(month, 0, SYSDATETIMEOFFSET()), 0) AS time_period,
CAST((DATEADD(month, DATEDIFF(month, 0, SYSDATETIMEOFFSET()), 0)) AS DATETIME) AS time_period_utc
FROM [your_sql_server_database].[<target_schema>].[<target_table>] AS analyzed_table
GROUP BY analyzed_table.[country], analyzed_table.[state]
ORDER BY level_1, level_2
,
daily partition string empty percent
Check description
Verifies that the percentage of empty strings in a column does not exceed the maximum accepted percentage. Creates a separate data quality check (and an alert) for each daily partition.
| Check name | Check type | Time scale | Sensor definition | Quality rule |
|---|---|---|---|---|
| daily_partition_string_empty_percent | partitioned | daily | string_empty_percent | max_percent |
Enable check (Shell)
To enable this check provide connection name and check name in check enable command
To run this check provide check name in check run command It is also possible to run this check on a specific connection. In order to do this, add the connection name to the below It is additionally feasible to run this check on a specific table. In order to do this, add the table name to the below It is furthermore viable to combine run this check on a specific column. In order to do this, add the column name to the below
dqo> check run -c=connection_name -t=table_name -col=column_name -ch=daily_partition_string_empty_percent
partitioned_checks:
daily:
strings:
daily_partition_string_empty_percent:
warning:
max_percent: 1.0
error:
max_percent: 2.0
fatal:
max_percent: 5.0
# yaml-language-server: $schema=https://cloud.dqo.ai/dqo-yaml-schema/TableYaml-schema.json
apiVersion: dqo/v1
kind: table
spec:
timestamp_columns:
event_timestamp_column: col_event_timestamp
ingestion_timestamp_column: col_inserted_at
incremental_time_window:
daily_partitioning_recent_days: 7
monthly_partitioning_recent_months: 1
columns:
target_column:
partitioned_checks:
daily:
strings:
daily_partition_string_empty_percent:
warning:
max_percent: 1.0
error:
max_percent: 2.0
fatal:
max_percent: 5.0
labels:
- This is the column that is analyzed for data quality issues
col_event_timestamp:
labels:
- optional column that stores the timestamp when the event/transaction happened
col_inserted_at:
labels:
- optional column that stores the timestamp when row was ingested
BigQuery
{% import '/dialects/bigquery.sql.jinja2' as lib with context -%}
{% macro render_column_cast_to_string(analyzed_table_to_render) -%}
{%- if (lib.target_column_data_type == 'STRING') -%}
{{ lib.render_target_column(analyzed_table_to_render) }}
{%- elif (lib.target_column_data_type == 'BIGNUMERIC') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DECIMAL') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BIGDECIMAL') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'FLOAT64') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INT64') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'NUMERIC') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'SMALLINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INTEGER') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BIGINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TINYINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BYTEINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DATE') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DATETIME') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TIME') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TIMESTAMP') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BOOLEAN') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- else -%}
{{ lib.render_target_column(analyzed_table_to_render) }}
{%- endif -%}
{% endmacro -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ render_column_cast_to_string('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.`target_column` IS NOT NULL
AND analyzed_table.`target_column` = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
CAST(analyzed_table.`` AS DATE) AS time_period,
TIMESTAMP(CAST(analyzed_table.`` AS DATE)) AS time_period_utc
FROM `your-google-project-id`.`<target_schema>`.`<target_table>` AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
MySQL
{% import '/dialects/mysql.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ lib.render_target_column('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.`target_column` IS NOT NULL
AND analyzed_table.`target_column` = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
DATE_FORMAT(analyzed_table.``, '%Y-%m-%d 00:00:00') AS time_period,
FROM_UNIXTIME(UNIX_TIMESTAMP(DATE_FORMAT(analyzed_table.``, '%Y-%m-%d 00:00:00'))) AS time_period_utc
FROM `<target_table>` AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
Oracle
{% import '/dialects/oracle.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ lib.render_target_column('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections_reference('analyzed_table') }}
{{- lib.render_time_dimension_projection_reference('analyzed_table') }}
FROM(
SELECT
original_table.*
{{- lib.render_data_grouping_projections('original_table') }}
{{- lib.render_time_dimension_projection('original_table') }}
FROM {{ lib.render_target_table() }} original_table
{{- lib.render_where_clause(table_alias_prefix='original_table') }}) analyzed_table
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND analyzed_table."target_column" = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
time_period,
time_period_utc
FROM(
SELECT
original_table.*,
TRUNC(CAST(original_table."" AS DATE)) AS time_period,
CAST(TRUNC(CAST(original_table."" AS DATE)) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "<target_schema>"."<target_table>" original_table) analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
PostgreSQL
{% import '/dialects/postgresql.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
CAST(analyzed_table."" AS date) AS time_period,
CAST((CAST(analyzed_table."" AS date)) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "your_postgresql_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
Redshift
{% import '/dialects/redshift.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
CAST(analyzed_table."" AS date) AS time_period,
CAST((CAST(analyzed_table."" AS date)) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "your_redshift_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
Snowflake
{% import '/dialects/snowflake.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
CAST(analyzed_table."" AS date) AS time_period,
TO_TIMESTAMP(CAST(analyzed_table."" AS date)) AS time_period_utc
FROM "your_snowflake_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY time_period, time_period_utc
ORDER BY time_period, time_period_utc
SQL Server
{% import '/dialects/sqlserver.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT_BIG(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LEN({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT_BIG(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT_BIG(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.[target_column] IS NOT NULL
AND LEN(analyzed_table.[target_column]) = 0
THEN 1
ELSE 0
END
) / COUNT_BIG(*)
END AS actual_value,
CAST(analyzed_table.[] AS date) AS time_period,
CAST((CAST(analyzed_table.[] AS date)) AS DATETIME) AS time_period_utc
FROM [your_sql_server_database].[<target_schema>].[<target_table>] AS analyzed_table
GROUP BY CAST(analyzed_table.[] AS date), CAST(analyzed_table.[] AS date)
ORDER BY CAST(analyzed_table.[] AS date)
Configuration with data grouping
Click to see more
Sample configuration (Yaml)
# yaml-language-server: $schema=https://cloud.dqo.ai/dqo-yaml-schema/TableYaml-schema.json
apiVersion: dqo/v1
kind: table
spec:
timestamp_columns:
event_timestamp_column: col_event_timestamp
ingestion_timestamp_column: col_inserted_at
incremental_time_window:
daily_partitioning_recent_days: 7
monthly_partitioning_recent_months: 1
default_grouping_name: group_by_country_and_state
groupings:
group_by_country_and_state:
level_1:
source: column_value
column: country
level_2:
source: column_value
column: state
columns:
target_column:
partitioned_checks:
daily:
strings:
daily_partition_string_empty_percent:
warning:
max_percent: 1.0
error:
max_percent: 2.0
fatal:
max_percent: 5.0
labels:
- This is the column that is analyzed for data quality issues
col_event_timestamp:
labels:
- optional column that stores the timestamp when the event/transaction happened
col_inserted_at:
labels:
- optional column that stores the timestamp when row was ingested
country:
labels:
- column used as the first grouping key
state:
labels:
- column used as the second grouping key
{% import '/dialects/bigquery.sql.jinja2' as lib with context -%}
{% macro render_column_cast_to_string(analyzed_table_to_render) -%}
{%- if (lib.target_column_data_type == 'STRING') -%}
{{ lib.render_target_column(analyzed_table_to_render) }}
{%- elif (lib.target_column_data_type == 'BIGNUMERIC') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DECIMAL') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BIGDECIMAL') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'FLOAT64') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INT64') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'NUMERIC') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'SMALLINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'INTEGER') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BIGINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TINYINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BYTEINT') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DATE') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'DATETIME') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TIME') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'TIMESTAMP') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- elif (lib.target_column_data_type == 'BOOLEAN') -%}
SAFE_CAST({{ lib.render_target_column(analyzed_table_to_render) }} AS STRING)
{%- else -%}
{{ lib.render_target_column(analyzed_table_to_render) }}
{%- endif -%}
{% endmacro -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ render_column_cast_to_string('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.`target_column` IS NOT NULL
AND analyzed_table.`target_column` = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table.`country` AS grouping_level_1,
analyzed_table.`state` AS grouping_level_2,
CAST(analyzed_table.`` AS DATE) AS time_period,
TIMESTAMP(CAST(analyzed_table.`` AS DATE)) AS time_period_utc
FROM `your-google-project-id`.`<target_schema>`.`<target_table>` AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
MySQL
{% import '/dialects/mysql.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ lib.render_target_column('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table.`target_column` IS NOT NULL
AND analyzed_table.`target_column` = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table.`country` AS grouping_level_1,
analyzed_table.`state` AS grouping_level_2,
DATE_FORMAT(analyzed_table.``, '%Y-%m-%d 00:00:00') AS time_period,
FROM_UNIXTIME(UNIX_TIMESTAMP(DATE_FORMAT(analyzed_table.``, '%Y-%m-%d 00:00:00'))) AS time_period_utc
FROM `<target_table>` AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
Oracle
{% import '/dialects/oracle.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND {{ lib.render_target_column('analyzed_table')}} = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections_reference('analyzed_table') }}
{{- lib.render_time_dimension_projection_reference('analyzed_table') }}
FROM(
SELECT
original_table.*
{{- lib.render_data_grouping_projections('original_table') }}
{{- lib.render_time_dimension_projection('original_table') }}
FROM {{ lib.render_target_table() }} original_table
{{- lib.render_where_clause(table_alias_prefix='original_table') }}) analyzed_table
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND analyzed_table."target_column" = ''
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table.grouping_level_1,
analyzed_table.grouping_level_2
,
time_period,
time_period_utc
FROM(
SELECT
original_table.*,
original_table."country" AS grouping_level_1,
original_table."state" AS grouping_level_2,
TRUNC(CAST(original_table."" AS DATE)) AS time_period,
CAST(TRUNC(CAST(original_table."" AS DATE)) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "<target_schema>"."<target_table>" original_table) analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
PostgreSQL
{% import '/dialects/postgresql.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table."country" AS grouping_level_1,
analyzed_table."state" AS grouping_level_2,
CAST(analyzed_table."" AS date) AS time_period,
CAST((CAST(analyzed_table."" AS date)) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "your_postgresql_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
Redshift
{% import '/dialects/redshift.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections('analyzed_table') }}
{{- lib.render_time_dimension_projection('analyzed_table') }}
FROM {{ lib.render_target_table() }} AS analyzed_table
{{- lib.render_where_clause() -}}
{{- lib.render_group_by() -}}
{{- lib.render_order_by() -}}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN analyzed_table."target_column" IS NOT NULL
AND LENGTH(analyzed_table."target_column") = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value,
analyzed_table."country" AS grouping_level_1,
analyzed_table."state" AS grouping_level_2,
CAST(analyzed_table."" AS date) AS time_period,
CAST((CAST(analyzed_table."" AS date)) AS TIMESTAMP WITH TIME ZONE) AS time_period_utc
FROM "your_redshift_database"."<target_schema>"."<target_table>" AS analyzed_table
GROUP BY grouping_level_1, grouping_level_2, time_period, time_period_utc
ORDER BY grouping_level_1, grouping_level_2, time_period, time_period_utc
Snowflake
{% import '/dialects/snowflake.sql.jinja2' as lib with context -%}
SELECT
CASE
WHEN COUNT(*) = 0 THEN 100.0
ELSE 100.0 * SUM(
CASE
WHEN {{ lib.render_target_column('analyzed_table')}} IS NOT NULL
AND LENGTH({{ lib.render_target_column('analyzed_table')}}) = 0
THEN 1
ELSE 0
END
) / COUNT(*)
END AS actual_value
{{- lib.render_data_grouping_projections(&