16.20 - Using Explicit Type Conversion to Change Format - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Functions, Expressions, and Predicates

prodname
Teradata Database
Teradata Vantage NewSQL Engine
vrm_release
16.20
category
Programming Reference
featnum
B035-1145-162K

To modify the format of the result of a CASE expression, use CAST and specify the FORMAT clause.

Here is an example that uses CAST to change the format of the result of the CASE expression in the previous query.

   SELECT i, ( CAST ((CASE
                WHEN i=1 
                THEN start_date
                WHEN i=2 
                THEN end_date
               END) AS DATE FORMAT 'M4BDD,BYYYY'))
   FROM duration
   ORDER BY 1;

For information on the default data type formats and the FORMAT phrase, see Teradata Vantage™ Data Types and Literals, B035-1143.