查询出随即排列的字段,插入到另一张表的一个字段里面出错,求解决
插入语句如下:
INSERT INTO tblVOTEWinnerList
([ID]
,[DrawingID]
,[ActivityID]
,[RulesID]
,[PhoneNumber]
)
( select '111',222,'333','444',
PhoneNumber =(select top 3 Voter from tblVOTEVoteRecord a left join
tblVOTEActivityInfo b on a.ActivityID=b.ActivityID
where a.ActivityID='43bf7430dbae435ca0c1f4856eb8cefa' order by newid())
from tblVOTEDrawingInfo where DrawingID=‘222’)
就是随机查询到 前三名的Voter ,然后插入到tblVOTEWinnerList的字段中,前面的ID都要求是一样的,我这个报错:
“子查询返回的值不止一个。当子查询跟随在 =、!=、<、<=、>、>= 之后,或子查询用作表达式时,这种情况是不允许的。”求解释该如何修改。
[解决办法]
你Insert 操作就一条记录,
下边这个查询取出3条记录,
肯定报错啊
- SQL code
(select top 3 Voter from tblVOTEVoteRecord a left join tblVOTEActivityInfo b on a.ActivityID=b.ActivityIDwhere a.ActivityID='43bf7430dbae435ca0c1f4856eb8cefa' order by newid())from tblVOTEDrawingInfo where DrawingID=‘222’)
[解决办法]
- SQL code
INSERT INTO tblVOTEWinnerList ([ID] ,[DrawingID] ,[ActivityID] ,[RulesID] ,[PhoneNumber] ) ( select top 3 '111',222,'333','444',PhoneNumber =(select Voter from tblVOTEVoteRecord a left join tblVOTEActivityInfo b on a.ActivityID=b.ActivityIDwhere a.ActivityID='43bf7430dbae435ca0c1f4856eb8cefa' order by newid())from tblVOTEDrawingInfo where DrawingID=‘222’)
[解决办法]
取前一名,子查询读取一条记录,然后插入;
取多名,就循环下,分别插入。
给个大概意思,自己改改吧。
比如取 3条,插入
- SQL code
declare @i int---计数器declare @n intdeclare @str nvarchar(50)set @i=1select top 3 Voter from tblVOTEVoteRecord a left join ......--你那串子查询select @n=@@rowcountwhile @i<=@n begin set @str=(select Voter from #t where id=@i) insert into tblVOTEWinnerList(.......) values(,,,@str) set @i=@i+1end
[解决办法]
忘了临时表了,,加上
- C# code
declare @i int---计数器declare @n intdeclare @str nvarchar(50)set @i=1select top 3 Voter into #t from tblVOTEVoteRecord a left join ......--你那串子查询select @n=@@rowcountwhile @i<=@n begin set @str=(select Voter from #t where id=@i) insert into tblVOTEWinnerList(.......) values(,,,@str) set @i=@i+1end
[解决办法]
- SQL code
INSERT INTO tblVOTEWinnerList ([ID] ,[DrawingID] ,[ActivityID] ,[RulesID] ,[PhoneNumber] ) SELECT '111' , 222 , '333' , '444' , voter AS PhoneNumber FROM ( SELECT TOP 3 Voter FROM tblVOTEVoteRecord a LEFT JOIN tblVOTEActivityInfo b ON a.ActivityID = b.ActivityID WHERE a.ActivityID = '43bf7430dbae435ca0c1f4856eb8cefa' AND DrawingID = '222' ORDER BY NEWID() ) a
[解决办法]
- SQL code
INSERT INTO tblVOTEWinnerList ([ID] ,[DrawingID] ,[ActivityID] ,[RulesID] ,[PhoneNumber] ) ( select top 3 '111',222,'333','444',PhoneNumber = Voter from tblVOTEVoteRecord a left join tblVOTEActivityInfo b on a.ActivityID=b.ActivityIDwhere a.ActivityID='43bf7430dbae435ca0c1f4856eb8cefa' order by newid())from tblVOTEDrawingInfo where DrawingID=‘222’