Example: CASE Expression Fails - Teradata Vantage - Analytics Database

SQL Functions, Expressions, and Predicates

Deployment
VantageCloud
VantageCore
Edition
VMware
Enterprise
IntelliFlex
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
ft:locale
en-US
ft:lastEdition
2025-11-22
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obm1628111499646.ditamap
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dita:id
kby1472250656485
lifecycle
latest
Product Category
Teradata Vantageā„¢

In the following statement, the CASE expression fails when column_2 contains the value 1 and column_3 contains the value 11223344556677889900.12 because the result is a DECIMAL value that requires more than 38 digits of precision:

   SELECT SUM (CASE
                WHEN column_2=1 
                THEN column_3 * 6.112233445566778800000
                ELSE column_3
               END )
   FROM dec22;