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我需要划分两列的总和在子查询,通过第三场分组如下:总和分组的子查询
Team | Score | MaxScorePossible
--------------------------------------------
A | 10 | 15
A | 12 | 20
B | 5 | 15
B | 7 | 20
我的代码是这样的:
SELECT (sumScore/sumMaxScore) as Percentage
FROM
(SELECT
sum(Score) as sumScore
FROM tableScore
GROUP BY Team) tbl1,
(SELECT
sum(MaxScorePossible) as sumMaxScore
FROM tableScore
GROUP BY Team) tbl2,
GROUP By Team
的输出我希望是这样的: A => 0.62,B => 0.34
问题很明显,我分组子查询和父查询,但我不知道如何组并导致另一个类似的组合。
谢谢!非常感激! – DrBorrow