Categories:: Data metric functions

CONTAINS_SPACES_PERCENT (system data metric function)¶

Returns the percentage of column values that contain at least one space, tab, or no-break space. The percentage is computed over the total row count, including NULL values in the denominator.

This topic provides the syntax for calling the function directly. To learn how to associate the function with a table or view so it runs at regular intervals, see Associate a DMF.

Syntax¶

SNOWFLAKE.CORE.CONTAINS_SPACES_PERCENT(<query>)

Arguments¶

query: Specifies a SQL query that projects a single column.

Allowed data types¶

The column projected by the query must have the VARCHAR data type.

Returns¶

The function returns a FLOAT value. The function returns NULL if the table or view has no rows.

Usage notes¶

The function counts a value that contains a space, a tab, or a no-break space (U+00A0) anywhere in the value. A value whose only whitespace is a line break is not counted.
To count only values with leading or trailing whitespace, use UNTRIMMED_STRING_PERCENT.

Example¶

Measure the percentage of values that contain spaces in the username column:

SELECT SNOWFLAKE.CORE.CONTAINS_SPACES_PERCENT(
  SELECT
    username
  FROM crm.tables.accounts
);