Stored Procedure Just Runs And Runs

I have a stored proceedure (which I will tag on at the end for those interested) which is taking at least 15 minutes to run when executed, but completes in 1 minute when the tsql statement is run in Query Analyser. Why is this?

I suspect that it may be connected to table indexing, but why then is this bypassed when QA is used?

Any advice appreciated.

Derek


************************************************** ***********************
IF EXISTS (SELECT * FROM sysobjects WHERE id = object_id(N'dbo.sp_ValidateAIGL') AND OBJECTPROPERTY(id, N'IsProcedure') = 1)
DROP PROCEDURE dbo.sp_ValidateAIGL
GO

CREATE PROCEDURE dbo.sp_ValidateAIGL
@IGLPeriodIDInt,
@IGLProgramIDInt

AS
/* ************************************************** ************************
Name:sp_ValidateIGL
Author:CL
Date:19-Jan-2001
Notes:
************************************************** ************************ */

--SET NOCOUNT ON

DECLARE@TaxYearChar(5),
@FrequencyChar(1),
@PeriodNo Int,
@ProgramLogIDInt

SELECT@TaxYear = TaxYear,
@PeriodNo = PeriodNo,
@Frequency = Frequency
FROMtbl_IGLPeriods
WHEREIGLPeriodID = @IGLPeriodID

SELECT @ProgramLogID = (SELECT ProgramLogID FROM tbl_SYSProgramLogs WHERE IGLProgramID = @IGLProgramID AND IGLPeriodID = @IGLPeriodID)

CREATE TABLE #IGLErrors
(
KeyFieldChar(24),
ErrorIDInt,
DescriptionVarChar(255)
)

-- *** Global Non Program Specific Data Errors ***
-- CHECK - that there are records in the DEB_IGL_PAYROLL_OUTPUT file.....none and the routine failed...
IF NOT EXISTS(SELECT * FROM tbl_OUT_Payroll WHERE IGLProgramID = @IGLProgramID)
INSERT INTO #IGLErrors SELECT NULL, 100, 'No records were processed by the IGL run!'

SELECT * FROM #IGLErrors

-- CHECK - search for any records where the employee's EXPENSE_CODE is NULL
INSERT INTO #IGLErrors
SELECT DISTINCT
NULLIF(EmpNo, ''),
2,
'Employee "' + COALESCE(NULLIF(RTRIM(EmpNo), ''),
'<Missing Employee>') + '" (Organisation Unit - ' + COALESCE(RTRIM(OrgUnitCode),
'<No Organisation Unit>') + ') does not have a EXPENSE_CODE Code.'
FROM tbl_OUT_Payroll
WHERE NULLIF(ExpenseCode, '') IS NULL
ANDIGLProgramID = @IGLProgramID

SELECT * FROM #IGLErrors
-- CHECK - check that the BALANCE of DEBITs match the balance of CREDITs
IF (SELECT SUM(Cash) FROM tbl_OUT_Payroll WHERE IsCredit = 1 AND IGLProgramID = @IGLProgramID) <> (SELECT SUM(Cash) FROM tbl_OUT_Payroll WHERE IsCredit = 0 AND IGLProgramID = @IGLProgramID)
INSERT INTO #IGLErrors SELECT NULL, 3, 'The total cash value for DEBIT elements does not match the total cash for CREDIT elements.'

SELECT * FROM #IGLErrors
-- *** Program 1 and 2 errors ***
IF @IGLProgramID IN (1, 2)
BEGIN
-- CHECK - search for any records where the employee's COST_CENTRE is NULL
INSERT INTO #IGLErrors
SELECT DISTINCT
NULLIF(EmpNo, ''),
1,
'Employee "' + NULLIF(RTRIM(EmpNo), '') + '" (Organisation Unit = ' + RTRIM(OrgUnitCode) + ') does not have a COST_CENTRE Code.'
FROM tbl_OUT_Payroll
WHERE NULLIF(CostCenter, '') IS NULL
ANDIGLProgramID = @IGLProgramID

SELECT * FROM #IGLErrors

-- Check for EMPLOYEEs that were not transfered to the PAYROLL output (usually caused by missing ORG_UNITs or not picked up in
-- the DEB_VIEW_APPOINTEE view...)
INSERT INTO #IGLErrors
SELECT DISTINCT
EMP_NO,
11,
'Employee "' + RTRIM(EMP_NO) + '" was excluded from the summary. Check their Organisation Unit codes!'
FROM PSELive.dbo.COSTING_OUTPUT
WHERENOT EMP_NO IN (SELECT DISTINCT EmpNo FROM tbl_OUT_Payroll WHERE IGLProgramID = @IGLProgramID)
ANDPERIOD_NO = @PeriodNo
ANDTAX_YEAR = @TaxYear

SELECT * FROM #IGLErrors

-- Check that there are no ELEMENTS in the COSTING_OUTPUT table that don't exist in the tbl_IGLElements table
INSERT INTO #IGLErrors
SELECT DISTINCT
ELEMENT,
12,
'Element "' + RTRIM(ELEMENT) + '" does not exist in the IGL Interface Elements table!'
FROM PSELive.dbo.COSTING_OUTPUT
WHERE ELEMENT NOT IN
(
SELECT DISTINCT Element
FROM tbl_IGLElements
)
ANDPERIOD_NO = @PeriodNo

SELECT * FROM #IGLErrors

END

-- *** Add a error to indicate the number of errors ***
IF EXISTS (SELECT * FROM #IGLErrors)
INSERT INTO #IGLErrors
SELECT 0,
0,
'Warning, there are ' + CAST(Count(*) AS VarChar(5)) + ' recorded errors!'
FROM#IGLErrors

-- Transfer the records to the ErrorsLog table ready for the user to view...
DELETE FROM tbl_SYSErrorsLog
INSERT INTO tbl_SYSErrorsLog (IGLProgramID, OutputLogID, KeyField, ErrorID, Description)
SELECT@ProgramLogID,
@IGLPeriodID,
KeyField,
ErrorID,
Description
FROM #IGLErrors
ORDER BY ErrorID

DROP TABLE #IGLErrors

SELECT *
FROM tbl_SYSErrorsLog
ORDER BY ErrorID

--SET NOCOUNT OFF

GO
GRANT EXECUTE ON dbo.sp_ValidateAIGL TO Public
GO