Question

我收到一条错误消息，指出从十进制（9,1）到十进制（7,4）转换时可能会发生数据丢失。 sum(b.Column2...)行发生此错误。

    insert into @tempTable
    select a.Column1, sum(b.Column2 * c.Column3 * d.Column4)
    from dbo.Table1 as a
    join dbo.Table2 as b on specified columns
    join dbo.Table3 as c on specified columns
    join dbo.Table4 as d on specified columns

我尝试了以下内容：

    insert into @tempTable
    select a.Column1, cast(sum(b.Column2 * c.Column3 * d.Column4) as decimal (7,4))
    from dbo.Table1 as a
    join dbo.Table2 as b on specified columns
    join dbo.Table3 as c on specified columns
    join dbo.Table4 as d on specified columns

我也尝试过：

   declare @tempColumn2 decimal(7,4);

   select @tempColumn2 = cast(a.Column1 as decimal(7,4)) -- This gives me an unresolved error message.

    insert into @tempTable
    select a.Column1, sum(@tempColumn2 * c.Column3 * d.Column4)
    from dbo.Table1 as a
    join dbo.Table2 as b on specified columns
    join dbo.Table3 as c on specified columns
    join dbo.Table4 as d on specified columns

任何提示将不胜感激！谢谢！

Answer 1

您收到错误消息是因为您试图将范围{-999999999.9 .. 999999999.9}压缩到{-999.9999 .. 999.9999}

“如何将十进制（9,1）拟合为十进制（7,4）”的答案？“是：你没有。

转换和求和错误

1 个答案: