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...
EXECUTE sp_executesql @StrSql,N'@UserID uniqueidentifier OUTPUT,@SysTime VARCHAR(20) OUTPUT,@EmpCode VARCHAR(5) , @PassWord VARCHAR(8)',@UserID OUTPUT ,@SysTime OUTPUT,@EmpCode,@PassWord
IF ....
BEGIN
RETURN 0
END
...



VB code:

With cmd
Set .ActiveConnection = g_Conn

.CommandType = adCmdStoredProc 'ÉèÖÃCommandÀàÐÍΪ¡°´æ´¢¹ý³Ì¡±
.CommandText = "P_Attend" '´æ´¢¹ý³ÌµÄÃû³Æ
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.Parameters.Append .CreateParameter("@RetVal", adInteger, adParamReturnValue)

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.Parameters.Append .CreateParameter("@EmpCode", adChar, adParamInput, 5, strEmpCode)
.Parameters.Append .CreateParameter("@PassWord", adChar, adParamInput, 5, strPassWord)

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.Parameters.Append .CreateParameter("@UserID", adGUID, adParamOutput)
.Parameters.Append .CreateParameter("@SysTime", adGUID, adParamOutput)

.Execute
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Attend= .Parameters("@RetVal").Value
If Attend= 0 Then
UserID = .Parameters("@U


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