Question

我使用以下查询：

select Containers.SalesOrderNumber,
    GetWeightInMT(Sum([NetWeight]), WeightUOM) as Expr1,
    CInt(Round(GetWeightInMT(Sum([NetWeight]), WeightUOM), 0)) as WtMt,
    SalesOrders.CustomerID,
    SalesOrders.SalesOrderID,
    SalesOrders.UnitPrice,
    SalesOrders.Quantity,
    SalesOrders.SalesCommission,
    SalesOrders.LatestShipDate,
    SalesOrders.PortOfDischarge,
    SalesOrders.PlaceOfDelivery,
    SalesOrders.LowerTolerancePct,
    SalesOrders.UpperTolerancePct,
    SalesOrders.Grade,
    (SalesOrders.Quantity - WtMt) as OpenQty
from Containers
inner join SalesOrders on Containers.SalesOrderNumber = SalesOrders.SalesOrderNumber
group by Containers.SalesOrderNumber,
    Containers.WeightUOM,
    SalesOrders.CustomerID,
    SalesOrders.SalesOrderID,
    SalesOrders.UnitPrice,
    SalesOrders.Quantity,
    SalesOrders.SalesCommission,
    SalesOrders.LatestShipDate,
    SalesOrders.PortOfDischarge,
    SalesOrders.PlaceOfDelivery,
    SalesOrders.LowerTolerancePct,
    SalesOrders.UpperTolerancePct,
    SalesOrders.Grade;

然后计算＆＃34; OpenQty＆＃34;的总和在我的文本框中。但是我得到错误＆＃34;标准表达式中的数据类型不匹配＆＃34;。请帮忙。三江源

Answer 1

您不能将计算字段（在本例中为WtMt）用作另一个字段计算的一部分。您必须重复使用整个计算。

(SalesOrders.Quantity - WtMt) as OpenQty

到

(SalesOrders.Quantity - CInt(Round(GetWeightInMT(Sum([NetWeight]), WeightUOM), 0))) as OpenQty

然而，这可能不是唯一的问题。我建议一次运行一个计算字段的查询，看看哪一个实际上给你错误。

条件表达式-ms访问中的数据类型不匹配错误

1 个答案: