有一张销售表tb_account如下:
user account
001 100.00
002 34.00
003 89.00
005 130.00
006 634.00
007 689.00
......
......
user列指的是工号,account指的是金额
现在需要计算一个数据:
找出满足条件 account 【总和大于等于500】(sum(account) >= 500 )的第一个user。
比如在上面的例子中,100+34+89+130+634 >= 500,所以 006 就是第一个满足条件的user。
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select top 1 user,总和 from(select user,sum(account) as 总和 from tb_account group by user) where 总和>500 order by 总和 desc
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按你说的006是第一个
任何小于500都不满足,
所以就是查第一个大于500的咯?
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500哪里来的
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select user sum(account) from 表 group by user having sum(account)>500
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select top 1 * from T where [user] = (select [user] from T group by [user] having SUM(account)>500)
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select top 1 user from 表 where accout>500
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- -!围观学习
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- SQL code
DECLARE @TB TABLE([USER] NVARCHAR(10),ACCOUNT DECIMAL(18,2))INSERT INTO @TBSELECT '001',100.00 UNION ALLSELECT '002',34.00 UNION ALLSELECT '003',89.00 UNION ALLSELECT '005',130.00 UNION ALLSELECT '006',634.00 UNION ALLSELECT '007',689.00SELECT *,RCOUNT=(SELECT SUM(ACCOUNT) FROM @TB WHERE [USER]<=T.[USER]) FROM @TB T/*USER ACCOUNT RCOUNT001 100.00 100.00002 34.00 134.00003 89.00 223.00005 130.00 353.00006 634.00 987.00007 689.00 1676.00*/--取大于500的第一条即可SELECT TOP 1 * FROM (SELECT *,RCOUNT=(SELECT SUM(ACCOUNT) FROM @TB WHERE [USER]<=T.[USER]) FROM @TB T) B WHERE RCOUNT>500/*USER ACCOUNT RCOUNT006 634.00 987.00*/
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SELECT top 1 t2.[user]
FROM [tb_account] as t1 , [tb_account] as t2 where t1.[user]<=t2.[User] group by t2.[User] having sum(t1.[account]) >500
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找出满足条件 account 【总和大于等于500】(sum(account) >= 500 )的第一个user。
你这个描述,应该就是寻找某个user的销售额超过500的结果集的第一条记录
难道不是吗
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select ROW_NUMBER() OVER (ORDER BY userASC)AS ROWID,user,account into #temp from tb_account a
select user from #temp a where (select sum(account ) from #temp where ROWID<a.ROWID)<500
and (select COsum(account ) from #temp where ROWID<a.ROWID+1)>500
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