What is the difference in case stmt

Hi
I'm getting the same output with the following case statements
SQL> select (case when empno=7566 then 100 else empno end)
2 from emp;
(CASEWHENEMPNO=7566THEN100ELSEEMPNOEND)
                                   7369
                                   7521
                                    100
                                   7654
                                   7698
SQL> select (case empno when 7566 then 100 else empno end)
2 from emp;
(CASEEMPNOWHEN7566THEN100ELSEEMPNOEND)
                                  7369
                                  7521
                                   100
                                  7654
                                  7698Apart from this do we have any difference between the above 2 case statments
Thanks

There is no difference in your two case statements. They represent same logic and thats why you are getting same output.
There are two ways to use case statements as shown by as well.
"CASE deptno when 10 then....." is used when we want to match the exact value using equality operator. This is same as "CASE when deptno=10 then ...."
"CASE when deptno >10 then....." is used when the operator is other than the "=" equality operator like "> ,<, Like,Bewteen etc" .
I thing you have got the point.
Regards
Edited by: NKU on Nov 4, 2008 9:44 PM

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