17.10 - Null Expressions - Advanced SQL Engine - Teradata Database

Teradata Vantageā„¢ - SQL Functions, Expressions, and Predicates

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Programming Reference
Publication ID
B035-1145-171K
Language
English (United States)

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

For a comparison to provide a TRUE result when comparing fields that might result in nulls, the statement must include the IS [NOT] NULL operator.