STATEMENT ERROR（子查询返回超过 1 个值）

Question

这是我的第一个问题。我刚刚从以前的 IT 人员那里接手了 SQL 报告，我正在为下面的查询而苦苦挣扎。两天前突然停止工作，现在显示：

报告处理过程中发生错误。 (rsProcessingAborted) 数据集“DataSet1”的查询执行失败。 (rsErrorExecutingCommand) 子查询返回超过 1 个值。当子查询跟随 =、!=、、>= 或子查询用作表达式时，这是不允许的。声明已终止。

它停在第 49 行：

and (select t.[status] from [ksimakeprod01].[imake].dbo.iSchWOScheduleLine t left join [ksimakeprod01].[imake].dbo.WORKORDER wa on t.WorkOrderKey=wa.WORKORDERKEY where wa.workorderno=wh.WorkOrderNo)<>7

我从错误中了解到我正在尝试使用多行数据更新一列...但是此查询以前有效...我该如何解决它？

完整查询：

if object_id('tempdb..#CCR_TimelineTable') is not null
begin
drop table #CCR_TimelineTable
end


--Populate temp table with opening inventory.
select 'Balance'as'CCStatus'
,case ss.WhseID when 'SH3' then 'FD2' else ss.WhseID end as 'WhseID'
,ss.ItemID,ss.QtyOnHand,ss.UnitMeasID,cast(cast(getdate() as date)as datetime)'Date',cast(''as varchar(max)) as'WOnum',cast(0 as decimal(10,3)) as'QtyPerCS',cast(0 as float)as'TotalWOqtyReq'
into #CCR_TimelineTable
from vdvStockStatus ss
    left join timItem i on i.ItemKey=ss.ItemKey
where ss.CompanyID='KSO'
and right(left(i.ItemID,5),2) in('PK','PC')

--Populate table with incoming purchase orders.
insert into #CCR_TimelineTable
select 'Purchas'
,case pl.WhseID when 'SH3' then 'FD2' else pl.WhseID end as 'WhseID'
,pl.ItemID,pl.QtyOpenToRcv,pl.UnitMeasID
    ,case when datename(dw,pl.PromiseDate) in ('Friday','Thursday','Wednesday')
            then dateadd(day,5,pl.PromiseDate)
        else dateadd(day,3,pl.PromiseDate) end
,pl.TranID,0,0
from vdvPurchaseOrderLine pl
where pl.CompanyID='KSO' 
and right(left(pl.ItemID,5),2) in('PK','PC')
and pl.StatusAsText='Open'
and pl.QtyOpenToRcv>0
and pl.PromiseDate > cast(getdate() as date)


--Populate table with open work orders. With iMake scheduled start times.
insert into #CCR_TimelineTable
select 'WorkOr',w.WhseID,il.ItemID,-(ww.balancequantitytoproduce*wl.MatReqPc),wos.MaterialItemUOM,ww.woschstdate,ww.workorderno,wl.MatReqPc,(ww.balancequantitytoproduce*wl.MatReqPc)
from tmfWorkOrdDetl_HAI wl
    left join tmfWorkOrdHead_HAI wh on wh.WorkOrderKey=wl.WorkOrderKey
    left join timitem il on il.ItemKey=wl.MatItemKey
    left join timItem ih on ih.ItemKey=wl.ProduceItemKey
    left join timWarehouse w on w.WhseKey=wl.WhseKey
    left join vdvWorkOrderSteps wos on wos.WorkOrderNo=wh.WorkOrderNo and wos.ItemID=il.ItemID
    left join (select wh.WORKORDERNO,sch.WOSchStDate,wh.balancequantitytoproduce from [ksimakeprod01].[imake].dbo.iSchWOScheduleLine sch
                left join [ksimakeprod01].[imake].dbo.WORKORDER wh on sch.WorkOrderKey=wh.WORKORDERKEY)ww on ww.workorderno=wh.workorderno
where wl.CompanyID='KSO'
and right(left(il.ItemID,5),2) in('PK','PC')
and wh.Complete=0
and ww.WOSchStDate is not null
and (select t.[status] from [ksimakeprod01].[imake].dbo.iSchWOScheduleLine t left join [ksimakeprod01].[imake].dbo.WORKORDER wa on t.WorkOrderKey=wa.WORKORDERKEY where wa.workorderno=wh.WorkOrderNo)<>7

update #CCR_TimelineTable
set Date= cast(getdate()as date)
where CCStatus='WorkOr' and Date<cast(getdate()as date)

--select * from #CCR_TimelineTable


------------------------------------------------------------------------------
/*declare @days as int
declare @PK as varchar(max)
declare @FG as varchar(max)
declare @WO as varchar(max)
declare @cell as varchar(max)
declare @desc as varchar(max)
set @days = 30
set @PK = '%'
set @FG = '%'
set @WO = '%'
set @cell = 'EGW 3+4'
set @desc = 'sain'*/

select w.WhseID,il.ItemID,id.ShortDesc as'PKDesc',wo.RoutingId,rd.ShortDesc as'FGDesc',wo.WorkOrderNo,ww.CellName,ww.WOSchStDate
    ,(select sum(tl.QtyOnHand) from #CCR_TimelineTable tl where tl.ItemID=il.ItemID and tl.WhseID=w.WhseID and ww.WOSchStDate>=tl.Date)'RunningBalance'
    ,(select top 1 tl.UnitMeasID from #CCR_TimelineTable tl where tl.ItemID=il.ItemID group by tl.UnitMeasID order by count(tl.UnitMeasID) desc)'UoM'
    ,inv.FD2,inv.FD2QC,inv.EG2,inv.EG2QC,inv.SH3,inv.SH3QC,inv.AL3
    ,(select distinct cc.QtyPerCS from #CCR_TimelineTable cc where cc.WOnum=wo.WorkOrderNo and cc.ItemID=il.ItemID)as'QtyReqPerCS'
    ,(select distinct cc.TotalWOqtyReq from #CCR_TimelineTable cc where cc.WOnum=wo.WorkOrderNo and cc.ItemID=il.ItemID)as'TotalQtyReqWO'
from tmfWorkOrdDetl_HAI wl
        left join tmfWorkOrdHead_HAI wh on wh.WorkOrderKey=wl.WorkOrderKey
        left join timitem il on il.ItemKey=wl.MatItemKey
        left join timItemDescription id on id.ItemKey=il.ItemKey
        left join vdvWorkOrder wo on wo.WorkOrderKey=wh.WorkOrderKey
        left join timWarehouse w on w.WhseKey=wl.WhseKey
        left join timItem ri on ri.ItemID=wo.RoutingId and ri.CompanyID='KSO'
        left join timItemDescription rd on rd.ItemKey=ri.ItemKey
        left join (select wh.WORKORDERNO,sch.WOSchStDate,wh.CURRENTSTATUS,mc.CellName from [ksimakeprod01].[imake].dbo.iSchWOScheduleLine sch
                left join [ksimakeprod01].[imake].dbo.WORKORDER wh on sch.WorkOrderKey=wh.WORKORDERKEY
                left join [ksimakeprod01].[imake].dbo.ManufacturingCell mc on mc.CellKey=wh.MANUFACTURINGCELL)ww on ww.workorderno=wo.workorderno
        left join (select i.ItemID
        ,isnull((select vs.QtyOnHand from vdvStockStatus vs where vs.WhseID='FD2' and vs.ItemID=i.ItemID),0)as'FD2'
        ,isnull((select vs.QtyOnHand from vdvStockStatus vs where vs.WhseID='FD2QC' and vs.ItemID=i.ItemID),0)as'FD2QC'
        ,isnull((select vs.QtyOnHand from vdvStockStatus vs where vs.WhseID='EG2' and vs.ItemID=i.ItemID),0)as'EG2'
        ,isnull((select vs.QtyOnHand from vdvStockStatus vs where vs.WhseID='EG2QC' and vs.ItemID=i.ItemID),0)as'EG2QC'
        ,isnull((select vs.QtyOnHand from vdvStockStatus vs where vs.WhseID='SH3' and vs.ItemID=i.ItemID),0)as'SH3'
        ,isnull((select vs.QtyOnHand from vdvStockStatus vs where vs.WhseID='SH3QC' and vs.ItemID=i.ItemID),0)as'SH3QC'
        ,isnull((select vs.QtyOnHand from vdvStockStatus vs where vs.WhseID='AL3' and vs.ItemID=i.ItemID),0)as'AL3'
        from timItem i
        where i.CompanyID='KSO'
        and right(left(i.ItemID,5),2) in('PK','PC'))inv on inv.ItemID=il.ItemID
where wl.CompanyID='KSO'
and right(left(il.ItemID,5),2) in('PK','PC')
and wh.Complete=0
and (select sum(tl.QtyOnHand) from #CCR_TimelineTable tl where tl.ItemID=il.ItemID and tl.WhseID=w.WhseID and ww.WOSchStDate>=tl.Date)<0
and ww.currentstatus<>'Completed'
and il.ItemID like '%'+ @PK +'%'
and wo.RoutingId like '%'+ @FG +'%'
and wo.WorkOrderNo like '%'+ @WO +'%'
and id.shortdesc like '%'+ @desc +'%'
and ww.cellname in(@cell)
and ww.WOSchStDate < dateadd(day,@days,getdate())

order by ww.WOSchStDate

Answer 1

and (select t.[status] from [ksimakeprod01].[imake].dbo.iSchWOScheduleLine t left join [ksimakeprod01].[imake].dbo.WORKORDER wa on t.WorkOrderKey=wa.WORKORDERKEY where wa.workorderno =wh.WorkOrderNo)7

问题是查询现在返回多行。如果您自己运行查询，那将是显而易见的。解决此问题的最简单方法是使用 TOP 子句确保仅返回 1 行，如下所示。

and (select TOP 1 t.[status] from [ksimakeprod01].[imake].dbo.iSchWOScheduleLine t left join [ksimakeprod01].[imake].dbo.WORKORDER wa on t.WorkOrderKey=wa.WORKORDERKEY where wa.workorderno=wh.WorkOrderNo)<>7

您应该知道这是一个“不好的”修复，因为它可能会导致您的整个查询返回错误的数据。这样想...您正在检查状态列是否为 7。但是，由于查询返回多行，因此一个状态值可能是 7，而另一个可能不是 7。因为您是现在使用 top 子句，顶行可以是 7，或者顶行可以是其他值。

我不想这么说，但修复此查询的最佳方法是完全重写。这是确保您的查询执行正确操作的唯一方法。

Answer 2

如果结束：

(select 
    t.[status] 
from 
    [ksimakeprod01].[imake].dbo.iSchWOScheduleLine t 
left join 
    [ksimakeprod01].[imake].dbo.WORKORDER wa 
on 
    t.WorkOrderKey=wa.WORKORDERKEY 
where 
    wa.workorderno=wh.WorkOrderNo)<>7

那么问题是这个子查询返回了多个记录，所以你不能将它与单个值进行比较。您可以使用TOP 1 强制它只返回一个值，但这取决于上下文是否合适。如果您确实使用它，您将基本上忽略该查询中的所有其他值，并且选择出现的第一个值可能没有意义！

(select 
    TOP 1 t.[status] 
from 
    [ksimakeprod01].[imake].dbo.iSchWOScheduleLine t 
left join 
    [ksimakeprod01].[imake].dbo.WORKORDER wa 
on 
    t.WorkOrderKey=wa.WORKORDERKEY 
where 
    wa.workorderno=wh.WorkOrderNo)<>7