15.10 - RETURNS NULL ON NULL INPUT - Teradata Database

Teradata Database SQL Data Definition Language Syntax and Examples

prodname
Teradata Database
vrm_release
15.10
created_date
December 2015
category
Programming Reference
featnum
B035-1144-151K

If any parameters are null at the time the SQL function is to be called, a null result is returned without evaluating the function.

This clause is optional and can only be specified once per SQL function definition.

The default is CALLED ON NULL INPUT.