NULLIF Expression | Teradata Vantage - NULLIF Expression - Advanced SQL Engine - Teradata Database

SQL Functions, Expressions, and Predicates

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
17.00
Published
June 2020
Language
English (United States)
Last Update
2021-01-30
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tpt1555966086716.ditamap
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dita:id
B035-1145
lifecycle
previous
Product Category
Teradata Vantageā„¢

Returns NULL if its arguments are equal. Otherwise, it returns its first argument, scalar_expression_1.

NULLIF is a shorthand expression for the following full CASE expression:

   CASE 
    WHEN  scalar_expression_1=scalar_expression_2  
    THEN NULL
    ELSE  scalar_expression_1  
   END

Default Title

The default title for a NULLIF expression appears as:

<CASE expression>