Example: Constant Reference Table Function - Analytics Database - Teradata Vantage

SQL Data Definition Language Syntax and Examples

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2024-10-04
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lifecycle
latest
Product Category
Teradata Vantage™

This example shows a constant reference table function equijoined to another table.

Note the following things about this example:
  • The table function is sent to all AMPs with the same constant data; therefore, it is a constant mode table function (see Teradata Vantage™ - SQL External Routine Programming, B035-1147).
  • The table function tudf1 produce all the rows selected.

    After that, the WHERE condition selects a subset from those produced. Only the qualifying rows are returned to the requestor.

           SELECT  *
           FROM tbl_1, TABLE(tudf1(28.8, 109)) AS tf2
           WHERE tbl_1.c1 = tf2.c1;