Bernandas Savarimuthu

SQL & PL/SQL Colletions

Thursday, September 4, 2008

Coalesce

The coalesce function returns the first non-null expression in the list. If all expressions evaluate to null, then the coalesce function will return null.

Syntax:
COALESCE (expression_1, expression_2, ...,expression_n).
Posted by Bernandas at 10:07 AM

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