16.20 - Example: Defining an SQL UDF With a Method in its RETURN Statement - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Data Definition Language Syntax and Examples

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Published
March 2019
Language
English (United States)
Last Update
2019-05-24
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This example specifies the system-generated method zip in its RETURN statement.

First you must create the structured UDT address.

     CREATE TYPE address
     AS (street VARCHAR(20), zip CHARACTER(5))
     NOT FINAL;

Now you can create the SQL UDF zipcode, which specifies the system-generated method zip in its RETURN statement.

     CREATE FUNCTION test.zipcode (a address)
     RETURNS CHARACTER(5)
     LANGUAGE SQL
     DETERMINISTIC
     CONTAINS SQL
     SPECIFIC test.zipcode
     CALLED ON NULL INPUT
     SQL SECURITY DEFINER
     COLLATION INVOKER
     INLINE TYPE 1
     RETURN a.zip();