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El Wed, 11 Jan 2017 08:55:18 -0700
Charles Wilt <charles.wilt@xxxxxxxxx> escribió:
SUM(CASE WHEN flag THEN col1 ELSE 0 end) AS bucket1
, SUM(CASE WHEN NOT flag THEN col1 ELSE 0 end) AS bucket2

Charles

On Wed, Jan 11, 2017 at 8:26 AM, <dlclark-hrkKUNNHk/rME/82e/C8hg@xxxxxxxxxxxxxxxx> wrote:

I need to SUM() a column into two different result buckets
depending on a flag in another file. I know how to GROUP, SUM, and JOIN
what I need but I'm not sure about getting a single input column to sum
into two different output columns. Can anybody give me a hint, please?
Thanks.

Sincerely,

Dave Clark
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0) Prepared the table and fed the data:

declare global temporary table Q (
QUA integer,
AMT decimal(9,2)
)
Table Q created in QTEMP.

insert into Q values
(1 , 25.00),
(1 , 75.00),
(1 , 2.98),
(2 , 4.32),
(2 , 7.00)
5 rows inserted in Q in QTEMP.

1) First try:

select
case when QUA=1 then sum(AMT) else 0 end A1,
case when QUA=2 then sum(AMT) else 0 end A2
from Q
group by QUA

3....+....4....+....5....+....6....+....7....+....8....+.
A1 A2
102.98 .00
.00 11.32
******** End of data ********

You get two rows. Not so good.

2) Second try (single row):

with Q1 as (
select
case when QUA=1 then AMT else 0 end A1,
case when QUA=2 then AMT else 0 end A2
from Q
)
select sum(A1),sum(A2) from Q1

+....3....+....4....+....5....+....6....+....7....+....8....+.
SUM ( A1 ) SUM ( A2 )
102.98 11.32
******** End of data ********


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