Question

UPDATE tblAttendance2 
SET 
    DateTimeIn = CONVERT(varchar(10), DateTimeIn, 120) + @TimeInChange,
    DateTimeOut = CONVERT(varchar(10), DateTimeIn, 120) + @TimeOutChange
WHERE 
    AttendanceDeductionsID = @AttendanceDeductionsID

我收到此错误

Msg 402，Level 16，State 1，Procedure SP_UpdateDTR_TimeChange，Line 8
数据类型varchar和time在add运算符中不兼容。

Answer 1

您正在将DateTimeIn转换为varchar（），然后添加@TimeInChange（可能是Time类型）。这不起作用。

如果DateTimeIn的类型为DateTime，而@TimeInChange的类型为Time，那么这将起作用：

UPDATE tblAttendance2 
SET DateTimeIn = DateTimeIn + cast(@TimeInChange as DateTime),
DateTimeOut =DateTimeIn + cast(@TimeOutChange as DateTime)
WHERE AttendanceDeductionsID = @AttendanceDeductionsID

Answer 2

假设@timeInChange的数据类型为time，请尝试使用

UPDATE tblAttendance2 
SET 
    DateTimeIn  = cast(cast( DateTimeIn as date) as datetime) +  cast (@TimeInChange as datetime),
    DateTimeOut = cast(cast( DateTimeIn as date) as datetime)  + cast (@TimeOutChange as datetime)
WHERE 
    AttendanceDeductionsID = @AttendanceDeductionsID

Answer 3

请尝试：

Sql Server如果您只需要hh + mm，那么您可以

--DECLARE @datetimein datetime

--SELECT @datetime = GETDATE()



UPDATE tblAttendance2 
SET DateTimeIn =
 CAST(DATEPART(hour, @datetimein) as varchar(2)) + 
':' +  CAST(DATEPART(minute, @datetimein)as varchar(2)) +@TimeInChange,

Date time out =use same procedure as above + @timeoutchange

  where <some condition condition>

仅更新SQL Server 2008中的datetime列的时间部分

3 个答案: