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结果集合并查询(union后不加all可去掉相同结果项)

union all 结果不想加

SELECT SUM(Totalcnt) FROM B_Com WHERE Type1='6' AND Type2='1' GROUP BY Type1,Type2
union all
SELECT SUM(Totalcnt) FROM B_Com WHERE Type1='6' AND Type2='2' GROUP BY Type1,Type2
union all
SELECT SUM(Totalcnt) FROM B_Com WHERE Type1='6' AND Type2='3' GROUP BY Type1,Type2

转载于:https://www.cnblogs.com/whlhaikuotiankong/archive/2012/04/18/2455265.html

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