- Categories:
INVALID_ USA_ ZIP_ CODE_ COUNT (system data metric function)¶
Returns the count of non-NULL column values that are not a U.S. ZIP Code in 5-digit (12345) or ZIP+4 (12345-6789) form.
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¶
Arguments¶
querySpecifies 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 NUMBER value. NULL values are not counted.
Usage notes¶
- The function checks the format only; it does not verify that the ZIP Code is assigned.
Example¶
Measure the number of invalid ZIP Codes in the zip_code column: