15.10 - Example: Defining an SQL UDF With a LOB Parameter - 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

The following CREATE FUNCTION request specifies a CLOB as a parameter in its definition.

     CREATE FUNCTION test.myudf (a CLOB, b INTEGER, c INTEGER, 
                                 d CHARACTER (100))
     RETURNS CHAR(50)
     LANGUAGE SQL
     DETERMINISTIC
     CONTAINS SQL
     SPECIFIC test.myudf
     CALLED ON NULL INPUT
     SQL SECURITY DEFINER
     COLLATION INVOKER
     INLINE TYPE 1
     RETURN d || (SUBSTRING(a FROM b FOR c));