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Oracle » PL-SQL » Decode »

Decode Function

     




This is one of the more popular functions available in PL-SQL.




Syntax:

DECODE ( <subject>, <testval>, <return-this-if-true>, <otherwise-return-this> )


Example:

select DECODE ( bonus, null, 100, bonus + 100 )
from employee ;





In this example, the column bonus is tested, if it is null, then 0 is returned, otherwise the bonus + 100 is returned.





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