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CREATE TABLE #tmpCustomers(
[CustomerID] [int] NOT NULL,
[CustomerCode] [varchar](20) NULL,
[CustomerName] [varchar](128) NULL,
[LeftCount] [int] NULL,
[RightCount] [int] NULL,
[CreationDate][datetime]null,
)

DECLARE Customer_Cursor CURSOR FOR
SELECT customerid
FROM Customers
OPEN Customer_Cursor;

declare @left  int
declare @right int
declare @customerid int

FETCH NEXT FROM Customer_Cursor into @customerid
WHILE @@FETCH_STATUS = 0
BEGIN
  EXEC dbo.CountChildren @customerId,@left out,@right out

    insert into #tmpCustomers 
    select customerId,[CustomerCode],[CustomerName],(CONVERT(NUMERIC(38,2), Creationdate)),@left,@right from Customers where CustomerID=@customerid
   FETCH NEXT FROM Customer_Cursor into @customerid;
END;

select *, case when  leftcount>RightCount then RightCount else LeftCount end as Pairs from #tmpCustomers a
drop table #tmpCustomers
CLOSE Customer_Cursor;
DEALLOCATE Customer_Cursor;

这是代码，此代码给出以下错误：

消息 8115，级别 16，状态 2，第 24
行将表达式转换为数据类型日期时间的算术溢出错误。

请指导我如何设置它。

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1 回答 1

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我看到两件事看起来不对：

  1. 您正在将日期时间转换为数值，它为您提供自 1900-01-01 以来的天数（和小数天数）。我不明白为什么在您的代码中需要这样做。
  2. INSERT 语句中的列没有正确排列。您正在将一个 NUMERIC(18,2)值（由于CONVERT）插入一个整数字段，并将一个int值插入一个DATETIME字段。这可能就是您在CreationDate结果中看到错误值的原因。

我怀疑你想要类似的东西：

INSERT INTO #tmpCustomers 
SELECT 
    customerId,
    [CustomerCode],
    [CustomerName],
    @left,
    @right, 
    Creationdate
FROM Customers 
WHERE CustomerID=@customerid
于 2013-08-21T15:51:45.263 回答