16.20 - expression - 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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A valid SQL expression.

You can specify both aggregate and arithmetic operators in a view definition expression.

You cannot specify a SAMPLE clause if the view definition also includes a TOP n or TOP m PERCENT specification.

The presence of aggregates in a view definition renders that view non-updatable.

AS
An optional introduction to expression_alias.
expression_alias
A temporary name for the expression.
Alias names are used to name expressions and must be always be specified for a self-join operation on the table.