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Data metric functions

INVALID_CUSIP_COUNT (system data metric function)

Returns the count of non-NULL column values that are not a CUSIP: eight characters, each an uppercase letter, digit, *, @, or #, followed by a digit.

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_CUSIP_COUNT(<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 NUMBER value. NULL values are not counted.

Usage notes

  • The function checks the format only; it does not validate the check digit.
  • The characters *, @, and # are accepted in the first eight positions because private-placement CUSIPs use them.
  • Lowercase letters do not match.

Example

Measure the number of invalid CUSIPs in the cusip column:

SELECT SNOWFLAKE.CORE.INVALID_CUSIP_COUNT(
  SELECT
    cusip
  FROM finance.tables.securities
);