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SQL Sum of items in two tables not equal.

Rog D
Rog D asked
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5 Comments
1 Solution
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Last Modified: 2018-03-07
Table A
Item       QOH
123         50
123         45
456           7
456         10
789          30
789          40

Table B
Item       QOH
123         50
123          45
456          4
789          28
789          40


Result Set
Item    QOH  QOH
456     17         4
789     70        68

My goal is to find the items where the Sums are NOT equal.

Thanks.
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Kyle AbrahamsSenior .Net Developer
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Commented: 
select a.item, sum(a.qoh) A_QOH, sum(b.qoh) B_QOH
from tbl_a a
join tbl_b b on a.item = b.item
having sum(a.qoh) != sum(b.qoh)

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Rog DSQL Developer / Web Development / Business Analysis
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Author

Commented:
This does not work as the sums are not calculated properly.

I believe it will require some sort of sub selects?
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Commented:
This problem has been solved!
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Vitor MontalvãoIT Engineer
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Distinguished Expert 2017

Commented:
Did you try an UNION?
SELECT item, SUM(QOH)
FROM tableA
GROUP BY item
UNION
SELECT item, SUM(QOH)
FROM TableB
GROUP BY item

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Rog DSQL Developer / Web Development / Business Analysis
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Author

Commented:
Great this solution worked with correct results.

Thanks.

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