16.20 - Null Expressions - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Functions, Expressions, and Predicates

Product
Advanced SQL Engine
Teradata Database
Release Number
16.20
Published
March 2019
Language
English (United States)
Last Update
2020-03-25
dita:mapPath
xzf1512079057909.ditamap
dita:ditavalPath
TD_DBS_16_20_Update1.ditaval
dita:id
kby1472250656485

If any expression in a comparison is null, the result of the comparison is unknown.

For a LIKE operation to provide a true result when searching fields that may contain nulls, the statement must include the IS [NOT] NULL operator.