17.05 - Example: SQL UDF in the Select List of a SELECT Statement - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Manipulation Language

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
Release Date
January 2021
Content Type
Programming Reference
Publication ID
B035-1146-175K
Language
English (United States)

You can specify an SQL UDF in the select list of an SQL request. As if true of other expressions in a select list, you can also alias an SQL UDF. In this request, the aliased value expression cve is specified as cve in the select list and in the WHERE clause.

     SELECT test.value_expression(t1.a1, t2.as) AS cve, cve+1
     FROM t1, t2
     WHERE t1.b1 = t2.b2
     AND   cve = 5;