SQL Summing Multiple Joins
I shortened the code quite a bit, but hopefully someone will get the idea of what i am tryign to do. Need to sum totals from two different selects, i tried putting each of them in Left Outer Joins(tried Inner Joins too). If i run wiht either Left Outer Join commented out, I get the correct data, but when i run them together, i get really screwed up counts. So, i know joins are probably not the correct approach to summing data from the same table, i can;t simple do it in a where clause there is other table involved int he code i commented out.
I guess i am trying to sum together 2 开发者_Go百科different queries.
SELECT eeoc.EEOCode AS 'Test1',
SUM(eeosum.Col_One) AS 'Col_One',
FROM EEO1Analysis eeo
LEFT OUTER JOIN (
SELECT eeor.AnalysisID, eeor.Test1,
SUM(CASE eeor.ZZZ WHEN 1 THEN (CASE eeor.AAAA WHEN 1 THEN 1 ELSE 0 END) ELSE 0 END) AS 'Col_One',
FROM EEO1Roster eeor
..........
WHERE eeor.AnalysisID = 7
GROUP BY eeor.AnalysisID, eeor.EEOCode
) AS eeosum2 ON eeosum2.AnalysisID = eeo.AnalysisID
LEFT OUTER JOIN (
SELECT eeor.AnalysisID, eeor.Test1,
SUM(CASE eeor.ZZZ WHEN 1 THEN (CASE eeor.AAAA WHEN 1 THEN 1 ELSE 0 END) ELSE 0 END) AS 'Col_One',
FROM EEO1Roster eeor
........
) AS eeosum ON eeosum.AnalysisID = eeo.AnalysisID
WHERE eeo.AnalysisID = 7
GROUP BY eeoc.Test1
You could UNION ALL the 2 queries and then do a SUM + GROUP BY i.e.
SELECT Col1, Col2, SUM(Col_One) FROM
(SELECT Col1, Col2, SUM(Col_One)
FROM Table1
WHERE <Conditionset1>
GROUP BY Col1, Col2
UNION ALL
SELECT Col1, Col2, SUM(Col_One)
FROM Table1
WHERE <Conditionset2>
GROUP BY Col1, Col2)
GROUP BY
Col1, Col2
Of course, if there is are row(s) returned by and they would be double counted.
What about
SELECT ... FROM EEO1Analysis eeo,
(SELECT ... LEFT OUTER JOIN ... GROUP BY ... ) AS data
...
?
And, if you can, I'd recommend preparing the data to separate tables, then operate on them with different analysis IDs. Could save some execution time at least.
Need to sum totals from two different selects If you expect one row single-column result, this way is enough
SELECT
((SELECT SUM(...) FROM ... GROUP BY...) +
(SELECT SUM(...) FROM ... GROUP BY...)) as TheSumOfTwoSums
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