Question

我有一个问题/问题，我今天可能已经盯着太久了。

我有一个从Web应用程序接收数据的存储过程。数据以小时间格式输入。我试图将此信息传递给第二个存储过程，但第二个存储过程将不会触发，除非数据是单引号。将它转换为varchar会更好吗？

由于显而易见的原因，SET @CompletedDate必须是'2010-01-20 15:28:00'。如何将此信息传递给第二个程序？

DECLARE @return_value int
    ,@TaskID int
    ,@CompletedDate smalldatetime
SET @TaskID = 90
SET @CompletedDate = 2010-01-20 15:28:00

EXEC    @return_value = [dbo].[usp_Task_Completion]
        @TaskID = @TaskID,
        @CompletedDate = @CompletedDate

这是usp_Task_Completion SP

SET QUOTED_IDENTIFIER ON
GO

ALTER PROCEDURE [dbo].[usp_Task_Completion]
@TaskID int 
,@CompletedDate smalldatetime
AS
BEGIN

SET NOCOUNT ON;

--Mark Transaction as complete
UPDATE dbo.Task
SET Completed = 1
    ,CompletedDate =  @CompletedDate
WHERE TaskID = @TaskID

Answer 1

不，因为varchar也必须用单引号括起来，只需在它周围加上引号

DECLARE @return_value int
    ,@TaskID int
    ,@CompletedDate smalldatetime
SET @TaskID = 90
SET @CompletedDate = '2010-01-20 15:28:00'

EXEC    @return_value = [dbo].[usp_Task_Completion]
        @TaskID = @TaskID,
        @CompletedDate = @CompletedDate

Answer 2

是的，您必须将小日期时间2010-01-20 15:28:00附加到单引号中 - ＆gt; '2010-01-20 15:28:00'

Answer 3

你可能在@CompletedDate上有一个命名混淆。更改声明中的变量名称，然后将set命令更改为使用单引号，如下所示：

SET @CompletedDateNewName = '2010-01-20 15:28:00'

@CompletedDate仍然可以是smalldatetime类型

Answer 4

这有点评论。有什么问题？以下是我的测试：

/*
create proc usp_Task_Completion (
    @TaskID int,
    @CompletedDate smalldatetime)
as 

    return 1000
*/
go


DECLARE @return_value int
    ,@TaskID int
    ,@CompletedDate smalldatetime
SET @TaskID = 90

/* This works */
--SET @CompletedDate = '2010-01-20 15:28:00'    

/* This doesn't work (incorrect syntax near '15'. */
--SET @CompletedDate = 2010-01-20 15:28:00      

/* This runs but yields unintended results (2010-01-20 = 1989; convert to datetime = '1905-06-13' */
SET @CompletedDate = 2010-01-20 

EXEC    @return_value = [dbo].[usp_Task_Completion]
        @TaskID = @TaskID,
        @CompletedDate = @CompletedDate

select @return_value

Answer 5

我猜测CompletedDate列不是smalldatetime，并且它试图将该列中的每个值转换为smalldatetime类型（有些失败）。请检查列类型是否确定。

通过SQL Smalldatetime时带有单引号的环绕变量

5 个答案: