Categories:: Data metric functions

INVALID_USA_ZIP_CODE_PERCENT (system data metric function)¶

Returns the percentage of column values that are not a U.S. ZIP Code in 5-digit (12345) or ZIP+4 (12345-6789) form. 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.INVALID_USA_ZIP_CODE_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.

Usage notes¶

The function checks the format only; it does not verify that the ZIP Code is assigned.

Example¶

Measure the percentage of invalid ZIP Codes in the zip_code column:

SELECT SNOWFLAKE.CORE.INVALID_USA_ZIP_CODE_PERCENT(
  SELECT
    zip_code
  FROM crm.tables.addresses
);