16.20 - AS expression_alias - 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
Content Type
Programming Reference
Publication ID
B035-1144-162K
Language
English (United States)
Last Update
2019-05-24

A mandatory unique alias for a SUM, COUNT, MIN, MAX, or extracted year or month expression.

The keyword AS preceding expression_alias is optional.

All expressions specified in the select list must be aliased. Otherwise, Teradata Database returns an error to the requestor.

This name permits further use of the result as the grouping key for a GROUP BY clause or the ordering key for an ORDER BY clause.