what is difference between decode and case function?
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Answer Posted / shiva kumar
Case functions are of two types
1. SIMPLE CASE(Equivalent to DECODE)
2. SEARCHED CASE
1.SIMPLE CASE is equivalent to DECODE in performance.The
only difference is it is ANSI Standard where as DECODE
function is designed by oracle.
2.SEARCHED CASE is more powerful then DECODE.Using SEARCHED
CASE we can evaluate multiple conditions,range evaluation.
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