Query Throws Random Errors?

Question

Hello, can anyone tell me why SAP throws random errors when trying to execute below query in Query Manager?
SAP opens and asks the user for the correct parameters but errors on execution.
/*SELECT FROM [dbo].[OHEM] T0*/
DECLARE @FirstName AS NVARCHAR(50)
/* WHERE */
SET @FirstName = /* T0.firstName */ '[%0]'
/*SELECT FROM [dbo].[OHEM] T1*/
DECLARE @LastName AS NVARCHAR(50)
/* WHERE */
SET @LastName = /* T1.lastName */ '[%1]'
/*SELECT FROM [dbo].[OFPR] T2*/
DECLARE @StartDate AS date
/* WHERE */
SET @StartDate = /* T2.F_RefDate */ '[%2]'
/*SELECT FROM [dbo].[OFPR] T3*/
DECLARE @EndDate AS date
/* WHERE */
SET @EndDate = /* T3.T_RefDate */ '[%3]'
Select     (EMP.firstName + ' ' + EMP.lastName) As Name,
               BL.TRANSDATE As Date,
               SJ.JOBID As [WO#],
               BL.SUBJOBID As [Tool ID],
               BL.STOCKCODE As Pay,
               CASE When TIMETYPE = 0
                    Then ISNULL(QTY,0)
                    Else 0
               End As ST,
               CASE When TIMETYPE = 1
                    Then ISNULL(QTY,0)
                    Else 0
               End As OT,
               CASE When TIMETYPE = 2
                    Then ISNULL(QTY,0)
                    Else 0
               End As DT
From OHEM EMP
     Inner Join ENPRISE_JOBCOST_TEMPBATCHJOBLINES BL On EMP.empID = BL.EMPID
     Inner Join ENPRISE_JOBCOST_SUBJOB SJ On SJ.SUBJOBID = BL.SUBJOBID
Where firstName Like @FirstName + '%' And lastName Like @LastName + '%'
And BL.TRANSDATE Between Convert(Datetime,@StartDate) And Convert(Datetime,@EndDate)
Group By     EMP.firstName,
                    EMP.lastName,
                    BL.TRANSDATE,
                    SJ.JOBID,
                    BL.SUBJOBID,
                    BL.STOCKCODE,
                    TIMETYPE,
                    QTY,
                    BL.EMPID
Order By Name
Thanks,
Mike

Answer 1

Hi Mike,
Can you try :
From OHEM EMP
     Inner Join dbo.[ENPRISE_JOBCOST_TEMPBATCHJOBLINES] BL On EMP.empID = BL.EMPID
     Inner Join dbo.[ENPRISE_JOBCOST_SUBJOB] SJ On SJ.SUBJOBID = BL.SUBJOBID
Regards
Edy