sql - Can we use same aggregate function more than once on same table field or column using Different filter conditions? -


i want use sum() function on 'amount' field in query 4 times on same field with different filters.

like

select date1,cc,bu, sum(amount),sum(amount),sum(amount),sum(amount) maintable<br> group cc,bu,date1

here

1st sum(amount) should calculated when mode='011' , mode='012' maintable
2nd sum(amount) should calculated when mode '03_' , mode '05_' maintable
3rd sum(amount) should calculated when mode '10_' maintable
4th sum(amount) should calculated when (mode !='011') , (mode !='012') (mode not '03_') , (mode not '05_') maintable

how make happen? have tried in many ways couldn't result way wanted.
please me.
thank in advance.

you can use aggregate function case:

select date1,   cc,   bu,    sum(case when mode = '011' amount end) mode011,   sum(case when mode = '012' amount end) mode012,   sum(case when mode = '013' amount end) mode013,   sum(case when mode = '014' amount end) mode014 maintable group cc,bu,date1;

or can use pivot function:

select date1, cc, bu,   [011] mode011,    [012] mode012,    [013] mode013,    [014] mode014 (   select date1, cc, bu, mode, amount   maintable ) src pivot (   sum(amount)   mode in ([011], [012], [013], [014]) ) piv

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