MIN function iside CASE WHEN

Question

Hi gurus,
I am new to PL SQL and wanted to know that cant we put MIN inside the CASE WHEN.
I have following mentioned query:
It is not allowing me to execute it, can anyone help me out?
SELECT A,
B,
D,
E,
F,
SUM
(CASE
WHEN <Expression> THEN (CASE
WHEN ( <Expression>
THEN 0
ELSE min(<Expression>) or min(<Expression>)
     END
ELSE 0
END
) AS sales
FROM tab1
WHERE ( column1 = 'x' )
GROUP BY A,
B,
D,
E,
F,
Edited by: user11001347 on Oct 29, 2009 2:34 AM

Answer 1

Group functions within a case are perfectly acceptable e.g.
select sum(case when dummy = 'X' then '1' else min(dummy) end) from dual group by dummy
SUM(CASEWHENDUMMY='X'THEN'1'ELSEMIN(DUMMY)END)
                                             1There are other problems with your code...
This looks wrong to me:
min(<Expression>) or min(<Expression>)and you have a trailing comma after F in the group by clause.
When you're having problems with a piece of SQL, It's useful to us if you post the error you are getting back, and your table structure and sample test data too if possible.
Edited by: Cyn on Oct 29, 2009 9:43 AM