Why Does A Query Runs Considerably Faster Than Stored Procedure?

Dec 29, 2003

I have an stored procedure that takes 23 seconds to execute. However, the same query is executed in 4 seconds.

All the tests where made using the Query Analizer.

What could be wrong?

Thanks a lot in advance.

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Drop PK And Query Runs Faster. Why?

Aug 23, 2000

I have a query which joins multiple tables. This query has suddenly begun to take up to 2 minutes to run (vs. 5-10 seconds previously).

No major change in number of records in the tables (currently about 220,000). When I remove the PK from one of the tables which then forces a tablescan, the query returns to running in 5-10 seconds. If I add the PK back, performance is back to 2 minutes.

Any suggestions short and/or long term?

Thanks for any help.

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Query In Stored Procedure Runs Too Fast

Jan 8, 2008

Ok, I'll admit right off the bat that I never suspected that I'd ever raise this complaint, much less worry about how to fix the "problem" associated with it!

We're preparing to take a large set of changes (projects) to PeopleSoft Financials from development to test. The code is still somewhat rough, but it has been "desk checked" to ensure that it does what the developers think that it ought to do, and they've blessed it at that point. The code is now moving into the test phase, and the QA team is finding locking/blocking issues that we've never seen in this code before... Sort of a "lock avalanche" where no one process locks for very long, but many of them block one another to the point where applications actually "freeze" while almost never hitting a deadlock.

My solution was to create a "blitzkrieg" query / stored procedure that would periodically sample master.dbo.sysprocesses, master.dbo.sysdatabases, and apply one of the dm_ functions to gather information on locking, blocking, and deadlocking. My procedure runs nicely (it never hangs) and gets about 99.3% of the data that I want.

The problem is that the blasted query / stored procedure runs either too fast or too slow, depending on how you look at it. Because the dm_ function takes a few ms to run, there can be a situation where either a row appears as a false positive or as a missing row because of timing... Either the culprit shows up as a blocker, but by the time the victim spid is evaluated the block has cleared, or the row is skipped and by the time the victim is evaluated the block has occured.

The whole process runs in well under 100 ms when there is nothing to report, and I've never seen it run 200 ms yet under the worst conditions it has faced, so the code is fast... The problem is that I really don't want to try to enforce any kind of locking to resolve the issue, because that locking would impact performance and that is EXACTLY what I do NOT want to do.

Any suggestions?

-PatP

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Query Runs In Sub Second Time Until I Put It In A Stored Procedure Then It Takes 2 Minutes.

Jun 25, 2007

The query below runs in sub second time if I don't call it as a stored procedure. I have looked at the execution plan for both the query and the query as a stored procedure and they are the same.
When I put the query into a stored procedure it takes over 2 minutes to run.
All feedback (even the ugly stuff) is more than welcome. I want to master this issue and forever put it behind me.
This is the sql when I just execute it outright:1 DECLARE
2 @WebUserID nvarchar(20)
3 ,@DocumentTypeID int
4 ,@RouteID nvarchar(10)
5 ,@CustomerID nvarchar(15)
6 ,@DocumentIDPrefix nvarchar(20)
7 ,@StartDate datetime
8 ,@EndDate datetime
9 ,@OversoldOnly bit
10 ,@DexCustomersOnly bit
11 ,@DeviationsOnly bit
12 ,@CashNoPaymentOnly bit
13 ,@SignatureName nvarchar(45)
14 ,@SortExpression varchar(200)
15 ,@StartRowIndex int
16 ,@MaximumRows int
17
18 SET @WebUserID = 'manager'
19 SET @DocumentTypeID = 0
20 SET @DocumentIDPrefix = '%'
21 SET @StartDate = '04/17/2007'
22 SET @EndDate = '04/19/2007'
23 SET @OversoldOnly = 0
24 SET @DexCustomersOnly = 0
25 SET @DeviationsOnly = 0
26 SET @CashNoPaymentOnly = 0
27 SET @SortExpression = ''
28 SET @StartRowIndex = 0
29 SET @MaximumRows = 20;
30
31 WITH OrderedDocumentHistory AS
32 (
33 SELECT
34 dh.DocumentHistoryID
35 ,dh.DocumentID
36 ,dh.DocumentTypeID
37 ,dh.DocumentTypeDesc
38 ,dh.RouteID
39 ,dh.RouteDesc
40 ,dh.CustomerID
41 ,dh.CustomerName
42 ,dh.DocDate
43 ,ISNULL(dc.HasReceipt, 0) AS 'HasReceipt'
44 ,ddt.Description AS 'SignatureReason'
45 ,a.Amount
46 ,ROW_NUMBER() OVER (ORDER BY dh.DocDate DESC) AS 'RowNumber'
47 FROM
48 DocumentHistory dh
49 INNER JOIN Customers c ON dh.CustomerID = c.CustomerID
50 INNER JOIN DeviationTypes ddt ON dh.DriverDeviationTypeID = ddt.DeviationTypeID
51 INNER JOIN
52 (
53 SELECT
54 DocumentHistoryID
55 ,(COALESCE(SUM((CONVERT(INT, Units + DeviationUnits)) * (UnitPrice - UnitDiscount)) + SUM((CONVERT(INT, Cases + DeviationCases)) * (CasePrice - CaseDiscount)), 0.0)) AS Amount
56 FROM
57 DocumentHistoryItems dhia
58 GROUP BY
59 dhia.DocumentHistoryID
60 ) AS a ON a.DocumentHistoryID = dh.DocumentHistoryID
61 LEFT OUTER JOIN
62 (
63 SELECT DISTINCT
64 dca.DocumentID
65 ,1 AS 'HasReceipt'
66 FROM
67 DocumentCollections dca
68 ) AS dc ON dh.DocumentID = dc.DocumentID
69 WHERE
70 dh.DocDate BETWEEN @StartDate AND @EndDate
71 AND (dh.DocumentTypeID = @DocumentTypeID OR @DocumentTypeID IS NULL)
72 AND (dh.RouteID = @RouteID OR @RouteID IS NULL)
73 AND (dh.CustomerID = @CustomerID OR @CustomerID IS NULL)
74 AND dh.DocumentID LIKE @DocumentIDPrefix
75 AND CASE WHEN @OversoldOnly = 1 THEN ISNULL( (SELECT TOP 1 (dhio.DeviationUnits + dhio.DeviationCases) FROM DocumentHistoryItems dhio WHERE dh.DocumentHistoryID = dhio.DocumentHistoryID AND (dhio.DeviationUnits > 0 OR dhio.DeviationCases > 0)), 0) ELSE 1 END > 0
76 AND CASE WHEN @DexCustomersOnly = 1 THEN c.DEXEnable ELSE 'Y' END = 'Y'
77 AND CASE WHEN @DeviationsOnly = 1 THEN ISNULL( (SELECT TOP 1 (dhio.DeviationUnits + dhio.DeviationCases) FROM DocumentHistoryItems dhio WHERE dh.DocumentHistoryID = dhio.DocumentHistoryID AND (dhio.DeviationUnits != 0 OR dhio.DeviationCases != 0)), 0) ELSE 1 END != 0
78 AND CASE WHEN @CashNoPaymentOnly = 1 THEN dh.Terms ELSE 'CHECK/CASH' END = 'CHECK/CASH'
79 AND CASE WHEN @CashNoPaymentOnly = 1 THEN (SELECT MAX(dhio.AlcoholPct) FROM DocumentHistoryItems dhio WHERE dhio.DocumentHistoryID = dh.DocumentHistoryID) ELSE 1 END > 0
80 AND CASE WHEN @CashNoPaymentOnly = 1 THEN ISNULL(dc.HasReceipt, 0) ELSE 0 END = 0
81 AND (dh.SigName = @SignatureName OR @SignatureName IS NULL)
82 AND (c.WarehouseID IN (SELECT WarehouseID FROM WebUserWarehouses WHERE WebUserID = @WebUserID)
83 OR @WebUserID IS NULL)
84 )
85
86 SELECT
87 DocumentHistoryID
88 ,DocumentID
89 ,DocumentTypeDesc
90 ,RouteID
91 ,RouteDesc
92 ,CustomerID
93 ,CustomerName
94 ,DocDate
95 ,Amount
96 ,HasReceipt
97 ,SignatureReason
98 FROM
99 OrderedDocumentHistory
100 WHERE
101 RowNumber BETWEEN (@StartRowIndex + 1) AND (@StartRowIndex + @MaximumRows) Here is the sql for creating the stored procedure.  1 CREATE Procedure w_DocumentHistory_Select
2 (
3 @WebUserID nvarchar(20)
4 ,@DocumentTypeID int
5 ,@RouteID nvarchar(10)
6 ,@CustomerID nvarchar(15)
7 ,@DocumentIDPrefix nvarchar(20)
8 ,@StartDate datetime
9 ,@EndDate datetime
10 ,@OversoldOnly bit
11 ,@DexCustomersOnly bit
12 ,@DeviationsOnly bit
13 ,@CashNoPaymentOnly bit
14 ,@SignatureName nvarchar(45)
15 ,@SortExpression varchar(200)
16 ,@StartRowIndex int
17 ,@MaximumRows int
18 )
19 AS
20 SET NOCOUNT ON
21
22 IF LEN(@SortExpression) = 0 OR @SortExpression IS NULL
23 SET @SortExpression = 'Number DESC'
24
25 IF @StartRowIndex IS NULL
26 SET @StartRowIndex = 0
27
28 IF @MaximumRows IS NULL
29 SELECT
30 @MaximumRows = COUNT(dh.DocumentHistoryID)
31 FROM
32 DocumentHistory dh;
33
34 WITH OrderedDocumentHistory AS
35 (
36 SELECT
37 dh.DocumentHistoryID
38 ,dh.DocumentID
39 ,dh.DocumentTypeID
40 ,dh.DocumentTypeDesc
41 ,dh.RouteID
42 ,dh.RouteDesc
43 ,dh.CustomerID
44 ,dh.CustomerName
45 ,dh.DocDate
46 ,ISNULL(dc.HasReceipt, 0) AS 'HasReceipt'
47 ,ddt.Description AS 'SignatureReason'
48 ,a.Amount
49 ,CASE
50 WHEN @SortExpression = 'Number DESC' THEN (ROW_NUMBER() OVER (ORDER BY dh.DocumentID DESC))
51 WHEN @SortExpression = 'Number ASC' THEN (ROW_NUMBER() OVER (ORDER BY dh.DocumentID ASC))
52 WHEN @SortExpression = 'CustomerName DESC' THEN (ROW_NUMBER() OVER (ORDER BY dh.CustomerName DESC))
53 WHEN @SortExpression = 'CustomerName ASC' THEN (ROW_NUMBER() OVER (ORDER BY dh.CustomerName ASC))
54 WHEN @SortExpression = 'CompletedDate DESC' THEN (ROW_NUMBER() OVER (ORDER BY dh.DocDate DESC))
55 WHEN @SortExpression = 'CompletedDate ASC' THEN (ROW_NUMBER() OVER (ORDER BY dh.DocDate ASC))
56 WHEN @SortExpression = 'RouteDescription DESC' THEN (ROW_NUMBER() OVER (ORDER BY dh.RouteDesc DESC))
57 WHEN @SortExpression = 'RouteDescription ASC' THEN (ROW_NUMBER() OVER (ORDER BY dh.RouteDesc ASC))
58 END AS 'RowNumber'
59 FROM
60 DocumentHistory dh
61 INNER JOIN Customers c ON dh.CustomerID = c.CustomerID
62 INNER JOIN DeviationTypes ddt ON dh.DriverDeviationTypeID = ddt.DeviationTypeID
63 INNER JOIN
64 (
65 SELECT
66 DocumentHistoryID
67 ,(COALESCE(SUM((CONVERT(INT, Units + DeviationUnits)) * (UnitPrice - UnitDiscount)) + SUM((CONVERT(INT, Cases + DeviationCases)) * (CasePrice - CaseDiscount)), 0.0)) AS Amount
68 FROM
69 DocumentHistoryItems dhia
70 GROUP BY
71 dhia.DocumentHistoryID
72 ) AS a ON a.DocumentHistoryID = dh.DocumentHistoryID
73 LEFT OUTER JOIN
74 (
75 SELECT DISTINCT
76 dca.DocumentID
77 ,1 AS 'HasReceipt'
78 FROM
79 DocumentCollections dca
80 ) AS dc ON dh.DocumentID = dc.DocumentID
81 WHERE
82 dh.DocDate BETWEEN @StartDate AND @EndDate
83 AND (dh.DocumentTypeID = @DocumentTypeID OR @DocumentTypeID IS NULL)
84 AND (dh.RouteID = @RouteID OR @RouteID IS NULL)
85 AND (dh.CustomerID = @CustomerID OR @CustomerID IS NULL)
86 AND dh.DocumentID LIKE @DocumentIDPrefix
87 AND CASE WHEN @OversoldOnly = 1 THEN ISNULL( (SELECT TOP 1 (dhio.DeviationUnits + dhio.DeviationCases) FROM DocumentHistoryItems dhio WHERE dh.DocumentHistoryID = dhio.DocumentHistoryID AND (dhio.DeviationUnits > 0 OR dhio.DeviationCases > 0)), 0) ELSE 1 END > 0
88 AND CASE WHEN @DexCustomersOnly = 1 THEN c.DEXEnable ELSE 'Y' END = 'Y'
89 AND CASE WHEN @DeviationsOnly = 1 THEN ISNULL((SELECT TOP 1 (dhio.DeviationUnits + dhio.DeviationCases) FROM DocumentHistoryItems dhio WHERE dh.DocumentHistoryID = dhio.DocumentHistoryID AND (dhio.DeviationUnits != 0 OR dhio.DeviationCases != 0)), 0) ELSE 1 END != 0
90 AND CASE WHEN @CashNoPaymentOnly = 1 THEN dh.Terms ELSE 'CHECK/CASH' END = 'CHECK/CASH'
91 AND CASE WHEN @CashNoPaymentOnly = 1 THEN (SELECT MAX(dhio.AlcoholPct) FROM DocumentHistoryItems dhio WHERE dhio.DocumentHistoryID = dh.DocumentHistoryID) ELSE 1 END > 0
92 AND CASE WHEN @CashNoPaymentOnly = 1 THEN ISNULL(dc.HasReceipt, 0) ELSE 0 END = 0
93 AND (dh.SigName = @SignatureName OR @SignatureName IS NULL)
94 AND (c.WarehouseID IN (SELECT WarehouseID FROM WebUserWarehouses WHERE WebUserID = @WebUserID)
95 OR @WebUserID IS NULL)
96 )
97 SELECT
98 DocumentHistoryID
99 ,DocumentID
100 ,DocumentTypeDesc
101 ,RouteID
102 ,RouteDesc
103 ,CustomerID
104 ,CustomerName
105 ,DocDate
106 ,Amount
107 ,HasReceipt
108 ,SignatureReason
109 FROM
110 OrderedDocumentHistory
111 WHERE
112 RowNumber BETWEEN (@StartRowIndex + 1) AND (@StartRowIndex + @MaximumRows)
 

 Here is the code for calling the stored procedure:1 DECLARE @RC int
2 DECLARE @WebUserID nvarchar(20)
3 DECLARE @DocumentTypeID int
4 DECLARE @RouteID nvarchar(10)
5 DECLARE @CustomerID nvarchar(15)
6 DECLARE @DocumentIDPrefix nvarchar(20)
7 DECLARE @StartDate datetime
8 DECLARE @EndDate datetime
9 DECLARE @OversoldOnly bit
10 DECLARE @DexCustomersOnly bit
11 DECLARE @DeviationsOnly bit
12 DECLARE @CashNoPaymentOnly bit
13 DECLARE @SignatureName nvarchar(45)
14 DECLARE @SortExpression varchar(200)
15 DECLARE @StartRowIndex int
16 DECLARE @MaximumRows int
17
18 SET @WebUserID = 'manager'
19 SET @DocumentTypeID = 0
20 SET @DocumentIDPrefix = '%'
21 SET @StartDate = '04/17/2007'
22 SET @EndDate = '04/19/2007'
23 SET @OversoldOnly = 0
24 SET @DexCustomersOnly = 0
25 SET @DeviationsOnly = 0
26 SET @CashNoPaymentOnly = 0
27 SET @SortExpression = ''
28 SET @StartRowIndex = 0
29 SET @MaximumRows = 20;
30
31 EXECUTE @RC = [Odom].[dbo].[w_DocumentHistory_Select]
32 @WebUserID
33 ,@DocumentTypeID
34 ,@RouteID
35 ,@CustomerID
36 ,@DocumentIDPrefix
37 ,@StartDate
38 ,@EndDate
39 ,@OversoldOnly
40 ,@DexCustomersOnly
41 ,@DeviationsOnly
42 ,@CashNoPaymentOnly
43 ,@SignatureName
44 ,@SortExpression
45 ,@StartRowIndex
46 ,@MaximumRows
 

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A Procedure Runs Slow As A Job But Runs Fast Executed In A Query Window

Apr 23, 2008

Performance issue.


I have a very complex Stored Procedure called by a Job that is Scheduled to run every night.
It's execution takes sometimes 1 or 2 hours and sometimes 7 hours or more.

So, if it is running for more than 4 hours I stop the Job and I run the procedure from a Query Window and it never takes more than 2 hours.

Can anyone help me identify the problem ? I want to run from the Job and not to worry about it.

Some more information:
- It is SQL 2000 Enterprise with SP4 in a Cluster (It happens the same way in any node).
- The SQL Server and SQL Agent services run using a Domain Account that have full Administrative access.
- When I connect to a Query Window I also use a Windows Account.

- There is no locks or process bloking or being blocked while the job is running.
- Using the Task Manager the processor activity is ok, no more than 30 % in any processor.

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Stored Procedure Just Runs And Runs

Oct 9, 2001

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

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Sp_executeSQL Perform Faster Than Stored Procedure, Why?

Dec 24, 2007



Hi,

I Have a stored procedure named pPatientFindByID that return one patient record from the Client.Patient table. The stored procedure has one parameter @patientID uniqueidentifier. i have set the NOCOUNT ON before running the SQL statement and making it OFF after it finishes execution. The table has a primary key ( clustered ) on patientID. The table has 66840 records in it. The index IS 0 (ZERO) percent fragmented and 3 level depth.

The stored proc returnes null or 1 record maximum. My problem is that the stored procedure takes about 2268 microsecond (2 millisecond) on average. while i execute the same SQL using sp_executeSQL it takes about 710 microsecond (< 1 millisecond). That is 3 time faster than stored procedure.

The SET OPTION are same for both the statement.

To troubleshoot the problem i have enabled the trace and captured the events. there were no recompile for both the stored proc and sp_executeSQL and not even the statement level recompilation.

I am trying to figure out why my stored procedure is taking longer than sp_executesql. Both the (stored proc and sp_executeSQL) has the same execution plan.


This is affecting our application performance. Does anyone know about this or have experience the same problem ever? your help would be greatly appriciated.

Data


1. Stored Procedure


/****** Object: StoredProcedure [dbo].[pPatientFindByID] Script Date: 12/24/2007 11:19:58 ******/

SET ANSI_NULLS ON

GO

SET QUOTED_IDENTIFIER ON

GO

CREATE PROCEDURE [dbo].[pPatientFindByID]

@patientID uniqueidentifier

WITH EXECUTE AS OWNER

AS

BEGIN

SET NOCOUNT ON



SELECT

[patient].[AVINumber] AS 'AVINumber',

[patient].[BirthDate] AS 'BirthDate',

[patient].[BreedID] AS 'BreedID',

[patient].[ChangeDate] AS 'ChangeDate',

[patient].[ChangeWorkstationID] AS 'ChangeWorkstationID',

[patient].[ClientID] AS 'ClientID',

[patient].[Color] AS 'Color',

[patient].[County] AS 'County',

[patient].[CountyRabiesTagNumber] AS 'CountyRabiesTagNumber',

[patient].[CreateDate] AS 'CreateDate',

[patient].[CreateWorkstationID] AS 'CreateWorkstationID',

[patient].[DeathDate] AS 'DeathDate',

[patient].[DeathReasonCode] AS 'DeathReasonCode',

[patient].[FirstVisitDate] AS 'FirstVisitDate',

[patient].[HasAllergy] AS 'HasAllergy',

[patient].[HasBitesOrScratch] AS 'HasBitesOrScratch',

[patient].[HasChronicCondition] AS 'HasChronicCondition',

[patient].[HasDeclinedPreventiveCare] AS 'HasDeclinedPreventiveCare',

[patient].[HasMedicalAllergy] AS 'HasMedicalAllergy',

[patient].[HospitalID] AS 'HospitalID',

[patient].[IsBites] AS 'IsBites',

[patient].[IsBitesInFear] AS 'IsBitesInFear',

[patient].[IsClinicalStudy] AS 'IsClinicalStudy',

[patient].[IsLitters] AS 'IsLitters',

[patient].[IsMixBreed] AS 'IsMixBreed',

[patient].[IsScratches] AS 'IsScratches',

[patient].[LastVisitDate] AS 'LastVisitDate',

[patient].[ManufacturerNameOfAVIChip] AS 'ManufacturerNameOfAVIChip',

[patient].[ManufacturerNameOfMicrochip] AS 'ManufacturerNameOfMicrochip',

[patient].[MicrochipNumber] AS 'MicrochipNumber',

[patient].[Name] AS 'Name',

[patient].[Note] AS 'Note',

[patient].[PatientID] AS 'PatientID',

[patient].[RabiesTagNumber] AS 'RabiesTagNumber',

[patient].[SexCode] AS 'SexCode',

[patient].[SpeciesID] AS 'SpeciesID',

[patient].[Status] AS 'Status',

[patient].[SystemLog] AS 'SystemLog',

[patient].[Weight] AS 'Weight',

[patient].[WellnessplanLevel] AS 'WellnessplanLevel',

[patient].[WellnessplanValue] AS 'WellnessplanValue'

FROM

[Client].[Patient] [patient]

WHERE

[PatientID] = @patientID

SET NOCOUNT OFF

END


2. sp_executeSQL


set nocount on

execute

sp_executeSQL N'

SELECT [patient].[AVINumber]

,[patient].[BirthDate]

,[patient].[BreedID]

, [patient].[ChangeDate]

, [patient].[ChangeWorkstationID]

, [patient].[ClientID]

, [patient].[Color]

, [patient].[County]

, [patient].[CountyRabiesTagNumber]

, [patient].[CreateDate]

, [patient].[CreateWorkstationID]

, [patient].[DeathDate]

, [patient].[DeathReasonCode]

, [patient].[FirstVisitDate]

, [patient].[HasAllergy]

, [patient].[HasBitesOrScratch]

, [patient].[HasChronicCondition]

, [patient].[HasDeclinedPreventiveCare]

, [patient].[HasMedicalAllergy]

, [patient].[HospitalID]

, [patient].[IsBites]

, [patient].[IsBitesInFear]

, [patient].[IsClinicalStudy]

, [patient].[IsLitters]

, [patient].[IsMixBreed]

, [patient].[IsScratches]

, [patient].[LastVisitDate]

, [patient].[ManufacturerNameOfAVIChip]

, [patient].[ManufacturerNameOfMicrochip]

, [patient].[MicrochipNumber]

, [patient].[Name]

, [patient].[Note]

, [patient].[PatientID]

, [patient].[RabiesTagNumber]

, [patient].[SexCode]

, [patient].[SpeciesID]

, [patient].[Status]

, [patient].[SystemLog]

, [patient].[Weight]

, [patient].[WellnessplanLevel]

, [patient].[WellnessplanValue]

FROM [Client].[Patient] [patient] WHERE [PatientID] = @patientID

',N'@patientID uniqueidentifier'

,'B1ABC1EA-D4AB-DB11-921E-00087434402F'





set nocount off

3- Trace Data



Name Event TextData Duration
SQL:BatchCompleted 12 exec dbo.pPatientFindByID @patientID='B1ABC1EA-D4AB-DB11-921E- 00087434402F' 2268
SQL:BatchCompleted 12 set nocount on execute sp_executeSQL N' SELECT [patient].[AVINumber] 710





DBA

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Dec 17, 2007



Hi
My PM and me are on a discussion. He wants SSIS to simply upload the source excel files in staging and do rest of the ETL in SQl server stored procedure which I feel is primitive.
I have suggested him to use SSIS for whole ETL and not Stored procedure( method which indistry has discarded)
He sayd Stored procedure are more efficient than SSIS.

Please guide with some facts.

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Jan 6, 2006

When i execute a stored procedure it generally takes about half a second to run but sometimes it takes 20 to 30 seconds.  I am the only one using the server so I know it is not due to other traffic.  I have looked at Profiler and nothing looks out of the ordinary.  Another observation is that the slow ones are always near eachother.  I will have about 10 fast executions and then 3 slow ones and then back to fast ones.  Has anyone seen anything like this before? 

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Jan 22, 2008

I think I may need help with query optimization.

We have a customer table and an address table. Each customer can have 1 or more addresses in the address table.

The task is to synchronize customer information from 2 entirely separate systems. I have a stored procedure that reads a text file (exported from the 'master' system) and updates all the customer records in the second system (which is in the sql server db). The queries themselves work. The data is accurate. My issue is with how long it takes the stored procedure to run. With over 11,000 records in the text file, the stored procedure sometimes takes over 3 hours to run.

That seems excessive to me. (and probably to those of you snickering in the back)

As an overview: my stored procedure does the following.

1) creates a temp table
2) dumps the data from the text file into the temp table
3) updates the address table with data from the temp table (records already there)
4) inserts records into the address table from the temp table (records not already there)
5) updates the customer table with an address id
6) drops the temp table

Any help/suggestions is appreciated. If you need more info, let me know.

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AdHoc Query Faster Than Stored Proc?

Aug 28, 2004

Yesterday i face a strange SQL Server 2000 behaviour :-(

I had a query that was wrapped inside a stored procedure, as usual.
Suddenly, the stored procedure execution time raised from 9 secs to 80.

So to understand where the problem was i cut and pasted the sp body's into a new query analyzer window an then executed it again. Speed back to 9 secs.
Tried stored procedure again, and speed again set to 80 secs.

Tried to recompile sp. Nothing. Tried to restart SQL Server. Nothing. Tried to DROP & RE-CREATE sp. Done! Speed again at 9 secs.

My collegue asked me "why?", but i had no words. :confused: Do you have any explanation?

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Oct 8, 2007

I have a stored procedure that syncs 2 databases. It runs fine if I go into the stored procedures and execute it manually, there are a few errors but it doesnt choke on them it completes with the desired end result. However if I create a job to run this dbo, it fails, The error log shows this:

Date,Source,Severity,Step ID,Server,Job Name,Step Name,Notifications,Message,Duration,Sql Severity,Sql Message ID,Operator Emailed,Operator Net sent,Operator Paged,Retries Attempted
10/03/2007 16:06:00,sync,Error,0,MACHINENAME,sync,(Job outcome),,The job failed. The Job was invoked by User MACHINENAMEAdministrator. The last step to run was step 1 (sync).,00:00:19,0,0,,,,0
10/03/2007 16:06:00,sync,Error,1,MACHINENAME,sync,sync,,Executed as user: companyname. ... 0) aspnet Member Exists [SQLSTATE 01000] (Message 0) DNN User Exists [SQLSTATE 01000] (Message 0) Updaing Roles __noelle(5281) [SQLSTATE 01000] (Message 0) aspnet User Exists [SQLSTATE 01000] (Message 0) aspnet Member Exists [SQLSTATE 01000] (Message 0) DNN User Exists [SQLSTATE 01000] (Message 0) Updaing Roles 0(5036) [SQLSTATE 01000] (Message 0) aspnet User Exists [SQLSTATE 01000] (Message 0) aspnet Member Exists [SQLSTATE 01000] (Message 0) New DNN User [SQLSTATE 01000] (Message 0) aspnet User Exists [SQLSTATE 01000] (Message 0) aspnet Member Exists [SQLSTATE 01000] (Message 0) DNN User Exists [SQLSTATE 01000] (Message 0) Updaing Roles 0000000(3795) [SQLSTATE 01000] (Message 0) aspnet User Exists [SQLSTATE 01000] (Message 0) aspnet Member Exists [SQLSTATE 01000] (Message 0) DNN User Exists [SQLSTATE 01000] (Message 0) Updaing Roles 007(8) [SQLSTATE 01000] (Message 0) aspnet User Exists [SQLSTATE 01000] (Message 0) aspnet Member Exis... The step failed.,00:00:19,14,3621,,,,0

So the error is 3621, and the severity is 14 which as I understand it means Insufficient Permissions.

I have already tried this:
Making the Job Agent service logon as MACHINeNAME/Administrator instead of System, giving the user here (companyname) more permissions, but I am at a loss as to why this runs ok when manually executed but fails when run as a job. I have created the job by scripting the dbo "Execute to a file" and having the job run that file as a step, I have also tried copying and pasting the code from the stored procedure into the job step. It always fails for the same reason.

I must say I am very new to SQL, I am a network admin and have inherited this database and server from another client and have to get this sync task to run daily at certain intervals.

Please can anyone shed light on this issue?
Thanks,

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Apr 19, 2007

Hi there everybody,

I am writing a sales managing software using C# in .NET 2005.
The program was used to work properly with sql server 2000.
I decided to write a "FILE Version" of sofware using sql server express 2005 , and detached db from 2000 , attaching it to 2005 using AttachDBFileName clause in connection string.

But the problem is when program executes something like this:
EXEC [AddOrder] ...
two rows inserted instead of one.and when I use server explorer of VS2005 to launch SP, it works fine.
I should mention again that same code works correctly when I change connection string and force it to use sqlserver 2000.

Any ideas?

Kind Regards: Ali

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Nov 8, 2006

I have a rather complex sp that runs for 4 minutes in SQL2000. It computes some messy oil and gas revenue/cost transactions. It involves lots of calls to functions that return single values of all types and also returns recordsets. There are all kinds of joins with temp and memory tables, etc. Just a mess, but it works. However, in SQL2005, it runs and apparently hangs, as it never ends.

I have run the Upgrade Advisor and otherwise, have not found any information that tells me that there are issues with functions or SQL-specific functions, tables, etc. that might cause this. Does anyone on this forum have some pointers on where I might look for assistance on this matter? Surely someone knows something about things working differently in 2005.

Thanks,



Jim

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Aug 15, 2007



Hi,


I apologize for the long post but I am trying to give as much information as I can about the steps I've taken to troubleshoot this.


We have a stored procedure that builds a sql statement and executes it using the Execute command. When I execute the stored procedure through query analyzer it takes close to 5 seconds to execute. When I print out the exact same statement and execute it directly in query analyzer as "raw sql", it takes 0.5 seconds - meaning it takes 10 times longer for the code to execute in the stored proc. I altered the stored proc to execute the printed sql instead of building but it still takes the full 5 seconds and there were no changes in the execution plan. This makes me confident that the issue is not caused by the dynamic sql. I've used with recompile to make sure that the stored procedure caches the most recent execution plan. When I compare the execution plans, the stored proc uses a nested loop whereas the raw sql statement uses a hash join. Seeing that, I added the hash hint to the stored proc and doing so brought down the execution time down from 5 secs to 2 secs but still the raw sql statement uses a clustered index whereas the stored proc uses a non-clustered index and that makes the statement 4 times slower. This proves how efficient clustered indexes are over non-clustered ones, but it doesn't help me since, as far as I know, I can't force SQL Server to use the clustered index.


Does anyone know why sql server is generating such an inefficient execution plan for the stored proc compared to the execution plan that it generates when executing the raw sql statement? The only thing I can think of is that some stats are not updated and that somehow throws off the stored proc. But then again, shouldn't it affect the raw sql statement?


Thank you,


Michael Tzoanos

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Mar 23, 2015

I have simple query which creates tables by passing database name as parameter from a parameter table .

SP1 --> creates databases and calls SP2--> which creates tables . I can run it fine via SSMS but when I run it using SSIS it fails with below error .The issue gets more interesting when it fails randomly on some database creation and some creates just fine .

Note** I am not passing any database of name '20'

Exception handler error :

ERROR :: 615 :: Could not find database ID 20, name '20'. The database may be offline. Wait a few minutes and try again. ---------------------------------------------------------------------------------------------------- SPID: 111 Origin: SQL Stored Procedure (SP1) ---------------------------------------------------------------------------------------------------- Could not find database ID 20, name '20'. The database may be offline. Wait a few minutes and try again. ----------------------------------------------------------------------------------------------------

Error in SSIS

[Execute SQL Task] Error: Executing the query "EXEC SP1" failed with the following error: "Error severity levels greater than 18 can only be specified by members of the sysadmin role, using the WITH LOG option.". Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly.I have sysadmin permission .

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Feb 19, 2007

Hello,
since a couple of days I'm fighting with RS 2005 and the Stored Procedure.

I have to display the result of a parameterized query and I created a SP that based in the parameter does something:

SET ANSI_NULLS ON
SET QUOTED_IDENTIFIER ON
CREATE PROCEDURE [schema].[spCreateReportTest]
@Name nvarchar(20)= ''

AS
BEGIN

declare @slqSelectQuery nvarchar(MAX);

SET NOCOUNT ON
set @slqSelectQuery = N'SELECT field1,field2,field3 from table'
if (@Name <> '')
begin
set @slqSelectQuery = @slqSelectQuery + ' where field2=''' + @Name + ''''
end
EXEC sp_executesql @slqSelectQuery
end

Inside my business Intelligence Project I created:
-the shared data source with the connection String
- a data set :
CommandType = Stored Procedure
Query String = schema.spCreateReportTest
When I run the Query by mean of the "!" icon, the parameter is Prompted and based on the value I provide the proper result set is displayed.

Now I move to "Layout" and my undertanding is that I have to create a report Paramater which values is passed to the SP's parameter...
So inside"Layout" tab, I added the parameter: Name
allow blank value is checked and is non-queried

the problem is that when I move to Preview -> I set the value into the parameter field automatically created but when I click on "View Report" nothing has been generated!!

What is wrong? What I forgot??

Thankx for any help!
Marina B.





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Jan 23, 2008



Has anyone encountered cases in which a proc executed by DTS has the following behavior:
1) underperforms the same proc when executed in DTS as opposed to SQL Server Managemet Studio
2) underperforms an ad-hoc version of the same query (UPDATE) executed in SQL Server Managemet Studio

What could explain this?

Obviously,

All three scenarios are executed against the same database and hit the exact same tables and indices.

Query plans show that one step, a Clustered Index Seek, consumes most of the resources (57%) and for that the estimated rows = 1 and actual rows is 10 of 1000's time higher. (~ 23000).

The DTS execution effectively never finishes even after many hours (10+)
The Stored procedure execution will finish in 6 minutes (executed after the update ad-hoc query)
The Update ad-hoc query will finish in 2 minutes

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Make Stored Proc Faster

Jun 17, 2004

Anyone got any alternatives to the SQL Statement below that would make it run a bit faster:

ALTER PROCEDURE sproc_ReturnAvailability

@ExtractDate DateTime,
@DateFrom DateTime,
@DateTo DateTime,
@96hrPlusFlag int,
@AppointmentsCount int OUTPUT

AS

IF @96hrPlusFlag = 0

BEGIN
SELECT @AppointmentsCount = COUNT(tbl_SurgerySlot.SurgerySlotKey)
FROM tbl_SurgerySlot
INNER JOIN tbl_SurgerySlotDescription ON (tbl_SurgerySlot.Label = tbl_SurgerySlotDescription.Label AND tbl_SurgerySlot.PracticeCode = tbl_SurgerySlotDescription.PracticeCode)
AND tbl_SurgerySlot.ExtractDate = @ExtractDate
AND tbl_SurgerySlot.StartTime BETWEEN @DateFrom AND @DateTo
AND tbl_SurgerySlotDescription.NormalBookable = 1
AND tbl_SurgerySlot.SurgerySlotKey NOT IN(
SELECT tbl_Appointment.SurgerySlotKey
FROM tbl_Appointment
WHERE tbl_Appointment.ExtractDate = @ExtractDate
AND tbl_Appointment.Deleted = 0
AND tbl_Appointment.Cancelled = 0
)
END
ELSE

BEGIN
IF @96hrPlusFlag = 1

SELECT @AppointmentsCount = COUNT(tbl_SurgerySlot.SurgerySlotKey)
FROM tbl_SurgerySlot
INNER JOIN tbl_SurgerySlotDescription ON (tbl_SurgerySlot.Label = tbl_SurgerySlotDescription.Label AND tbl_SurgerySlot.PracticeCode = tbl_SurgerySlotDescription.PracticeCode)
AND tbl_SurgerySlot.ExtractDate = @ExtractDate
AND tbl_SurgerySlot.StartTime >@DateTo
AND tbl_SurgerySlotDescription.NormalBookable = 1
AND tbl_SurgerySlot.SurgerySlotKey NOT IN(
SELECT tbl_Appointment.SurgerySlotKey
FROM tbl_Appointment
WHERE tbl_Appointment.ExtractDate = @ExtractDate
AND tbl_Appointment.Deleted = 0
AND tbl_Appointment.Cancelled = 0
)

END

Cheers...

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Will A Store Procedure Execute Faster Than Regular Select ?

Nov 7, 2003

Hello,

Lets say I have a SP that return 1000 records,

do I get any better speed if doing it on a SP instead of just SELECT without an SP ?

if I have many users on a web-site that will execute this SP - will they get any better
speed because it is a SP ? - can SP cache itself - if so - for how long ?


(Why should I use SP if not passing any parameters ?)

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Jun 20, 2007

Hi y'all,
I've recently run a profiler on my code and following query took 7 seconds:
SELECT TOP 10 UI, COUNT(UI) AS Expr1 FROM table WHERE (UI <> 'custom_welcome') GROUP BY UI ORDER BY COUNT(UI) DESC
Is it possible to rewrite this so my code gets faster? It's also possible that it's due to the size of the table?
Thanks in advance! I'll let you know how long your query takes :)

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Mar 31, 2004

Hi!
I M basically an application developer & use simple sql queries in my programmings. I do not have much idea abt tuning/auditing part & thatswhy i m unable to answer them properly in my interviews. Can anybody give me some tips?????

Question 1:
In a stored procedure, One SELECT stmt is there & depending upon the @rowcount, it updates around 14000 records which is also written inside this stored procedure. Instead of writing this way, there is some other way which is faster than this. Can anybody tell me the correct way???

Question 2:Can anybody give me few examples like this?????? I need them desparetly.

Thanx. Bye.

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Jul 26, 2006

I have rewritten a stored procedure that consists of a single select that selects from a view. Essentially I combined the select in the view and the select in the sp into one select. I am now trying to determine if the new version is faster.

The estimated execution plan gives a ratio of 96% : 4% in favour of the new version when I run them together from a query window but when I try to time them I can't get a satisfactory result.

If I run each query once and display the difference between start and end time, they display 0. If I run each one 100, 200, etc times I get different results each time.

Is there anything I can do?

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Dec 19, 2003

I'm running a query, actually its an insert that works when using the TSQL below.

However when I try to use the debugger to step through and using the exact same values as those below I get the following error:

[Microsoft][ODBC SQL Server Driver]Invalid character value for cast specification

Its Killing me because everything else works, but this. Can somebody help.


DECLARE @NoteID INT,-- NULL OUTPUT,
@Note_Description NVARCHAR(3000),-- = NULL,
@Date DateTime,-- = NULL OUTPUT,
@ByWho NVARCHAR(30),-- = NULL,
@FK_Action_Performed NVARCHAR(40),-- = NULL,
@FK_UserID INT,-- = NULL,
@FK_JobID INT,-- = NULL,
@Job_Date DateTime,-- = NULL,
@Start DateTime,-- = NULL,
@Finish DateTime,-- = NULL,

@BeenRead NVARCHAR(10),-- = NULL

@FK_UserIDList NVARCHAR(4000)-- = NULL


--SET @NoteID = 409 --NULL OUTPUT,
SET @Note_Description = 'Tetsing'
--SET @Date DateTime = NULL OUTPUT,
SET @ByWho = 'GeorgeAgaian'
SET @FK_Action_Performed = 'Worked hard'
SET @FK_UserID = 5
SET @FK_JobID = 29
SET @Job_Date = 28/01/03
SET @Start = '1:00:20 PM'
SET @Finish = '1:00:20 PM'
SET @BeenRead = 'UnRead'

SET @FK_UserIDList = '1,2,3'


--AS

--SET NOCOUNT ON


SET NOCOUNT ON

SET XACT_ABORT ON

BEGIN TRANSACTION

SET @Date = GETDATE()

-- Insert Values into the customer table
INSERT Note (Note_Description,
Date,
ByWho,
FK_Action_Performed,
FK_UserID,
FK_JobID,
Job_Date,
Start,
Finish)

SELECT --@NoteID,
@Note_Description,
@Date,
@ByWho,
@FK_Action_Performed,
@FK_UserID,
@FK_JobID,

@Job_Date,
@Start,
@Finish

-- Get the new Customer Identifier, return as OUTPUT param
SELECT @NoteID = @@IDENTITY


-- Insert new notes for all the users that the note pertains to, in this case this will be by the assigned
-- users.
IF @FK_UserIDList IS NOT NULL
EXECUTE spInsertNotesByAssignedUsers @NoteID, @FK_UserIDList

-- Insert New Address record
-- Retrieve Address reference into @AddressId
-- EXEC spInsertForUserNote
-- @FK_UserID,
--@NoteID,
-- @BeenRead
-- @Fax,
-- @PKId,
-- @AddressId OUTPUT

COMMIT TRANSACTION

--------------------------------------------------
GO

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Jan 12, 2007

For some reason, I run a stored procedure in Query Analyzer and it works fine. When I run the very same procedure in MS access by clicking on its link I have to run it twice. The first run gives me the message that the stored procedure ran correctly but returned no records. The second run gives me the correct number of records but I have to run it twice. I am running month-to-month data. The first run is Jan thru March. Jan and Feb have no records so I run three months on the first set. The ensuing runs are individual months from April onward. The output is correct but any ideas on why I have to do it twice in Access? I am a bit new to stored procedures but my supervisor assures me that it should be exactly the same.

ddave

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Oct 17, 2007

Can anyone give me the basics of speeding up reports that use queries or views or nested views?
Current reports are now taking over 2 minutes to show.We have thousands and sometimes even millions of records to report against.Queries have 4 and 5 table joins etc.
We are using ASP.NET 2.0 in Visual Studio 2005 and Crystal Reports.
Thanks
 

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Mar 20, 2007

I need help makeing the following query run more efficently.


Code:


SELECT t1.ID,t1.firstName,t1.lastName,t1.address,t1.city,t1.state, t1.zip,t1.locationAddress,t1.locationCity,t1.locationState,t1.locationZip
FROM Landlord_tbl t1
left outer join Mail_tbl t2
ON t2.potentialSitesID = t1.potentialSitesID
WHERE t2.mailed_out_date is null and NOT(t1.firstName+t1.lastName) is Null
GROUP BY t1.ID,t1.firstName,t1.lastName,t1.address,t1.city,t1.state, t1.zip,t1.locationAddress,t1.locationCity,t1.locationState,t1.locationZip
ORDER BY t1.firstName, t1.lastName, t1.city, t1.state

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Feb 28, 2008

Hi, when I execute the sql in DBTestArchive and then DBTest query analyzer , I found that the run time is shorter in DBTest. Can I make assumption that the query run time is shorter in DBTest if I select data from it and insert into another database? Thanks.



INSERT INTO DBTestArchive.dbo.tblVendorMasterArchive
SELECT * FROM DBTest.dbo.tblVendorMaster

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Better (faster) Way Of Handling Query

Mar 26, 2008



I have a query which will display the employee name who is handling maximum number of project.
the query is



Code Snippet

select EmployeeDetails.Empid,

EmployeeDetails.FirstName + ' '+EmployeeDetails.LastName as EmpName,

count(*) as Number_Of_Projects
from EmployeeDetails left outer join LUP_EmpProject

on EmployeeDetails.Empid= LUP_EmpProject.Empid
group by EmployeeDetails.Empid,EmployeeDetails.FirstName,EmployeeDetails.LastName
HAVING count(*)=(SELECT TOP 1 COUNT(EmpID)



FROM LUP_EmpProject GROUP BY EmpID ORDER BY 1 DESC)






where EmployeeDetails table contain empname and empid. LUP_EmpProject table contain empid and project id.

Can anybody help me in writing a better query than the above given?

Please help!!!!!!!!!!

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Procedure Compiles And Runs But...!!!!!!!!!!!!

May 13, 2002

My procedure compliles and runs. l 'm running it as 'exec Statement' it should prompt me for the start and end date but it does not. Where
have l gone wrong in my logic l've declared all the variables need. Please advice


if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[Statement]')
and OBJECTPROPERTY(id, N'IsProcedure') = 1)
drop procedure [dbo].[Statement]
GO

SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO


Create Procedure Statement
As
Begin

declare @Startdate As datetime
declare @Enddate As datetime

declare @Customer_No As char(15)
declare @loanno As char(15)

declare @transaction_date As datetime
declare @transaction_type As char(3)
declare @reference As varchar(20)
declare @notes As varchar(255)
declare @transaction_amount As decimal (9,2)
declare @transaction_description As varchar(50)

declare @debit_amount As decimal (9,2)
declare @credit_amount As decimal (9,2)
declare @counter As int
declare @balance As decimal (9,2)
declare @user_changed As char(8)


declare c2 CURSOR FOR
SELECT loan_no
FROM loan
where customer_no = @Customer_No
ORDER BY loan_no

OPEN c2
FETCH NEXT FROM c2 INTO @loanno

-- Check @@FETCH_STATUS to see if there are any more rows to fetch.
WHILE @@FETCH_STATUS = 0
BEGIN

declare c1 CURSOR FOR
SELECT transaction_record.loan_no,
transaction_record.transaction_date,
transaction_record.transaction_type,
transaction_record.reference_no,
transaction_record.notes,
transaction_record.transaction_amount,
transaction_type.[description]
FROM transaction_record
inner join transaction_type
on transaction_type.transaction_type = transaction_record.transaction_type
where loan_no = @loanno and transaction_Date between @startdate and @enddate and transaction_amount <> 0
ORDER BY transaction_date

OPEN c1
FETCH NEXT FROM c1
INTO @transaction_date,
@transaction_type,
@reference,
@notes,
@transaction_amount,
@transaction_description

-- Check @@FETCH_STATUS to see if there are any more rows to fetch.
WHILE @@FETCH_STATUS = 0
BEGIN
If (@transaction_amount < 0)
Begin
set @credit_amount = @transaction_amount
set @debit_amount = 0
End
Else
Begin
set @debit_amount = @transaction_amount
set @credit_amount = 0
End

If (@counter = 0)
Begin
set @balance = @transaction_amount
End
Else
Begin
set @balance = @balance + @transaction_amount
End

insert into Statement (customer_no,loan_no,
transaction_date,transaction_type,transaction_desc ription,
reference, notes, debit_amount, credit_amount, balance,
user_changed, transaction_no)

Values (@Customer_No,
@loanno,
@transaction_date,
@transaction_type,
@transaction_description,
@reference,
@notes,
@debit_amount,
@credit_amount,
@balance,
@user_changed,
@counter)

set @counter = @counter+1

FETCH NEXT FROM c1
INTO @transaction_date,
@transaction_type,
@reference,
@notes,
@transaction_amount,
@transaction_description
End
CLOSE c1
DEALLOCATE c1

FETCH NEXT FROM c2 INTO @loanno
End
CLOSE c2
DEALLOCATE c2
END;
Go

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Procedure Runs With An Error???

May 24, 2004

This is my procedure and the error is incorrect syntax near '01'

DECLARE @returnDay int

--Looking at current date,
SELECT @returnDay = DatePart(day,GetDate())
--If is the 7th of the current moth then
If @returnDay = 24

EXEC master.dbo.xp_sendmail
@query = 'SELECT a.HospitalName,a.HospitalCode,c.ProductName,b.UnitsDiscarded,d.FateOfProducts,b. DateEntered,
b.DateCompleted,b.CompiledBy FROM test.dbo.Units b inner join Hospitals a ON (a.HospitalID = b.HospitalID)
inner join Products c ON (b.ProductID = c.ProductID)
inner join FateOfProducts d ON (d.FateID = b.FateID)
where b. DateEntered = DateAdd(month, -1, Convert(CHAR(8), GetDate(), 121) + '01') order by a.HospitalID',
@recipients=test@hotmail.com', @message='Submitting Results for the previous month',
@subject=' results for previous month', @attach_results = 'true', @separator = '/s'

SELECT @@ERROR As ErrorNumber


What am I missing here now, I am quite new to stored procedures


REgards

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Jul 23, 2005

I am able to run a query which runs FAst in QA but slow in theapplication.It takes about 16 m in QA but 1000 ms on theApplication.What I wanted to know is why would the query take a longtime in the application when it runs fast on SQL server?How should we try debugging it?Ajay

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Jun 13, 2007

Seems like I'm stealing all the threads here, : But I need to learn :) I have a StoredProcedure that needs to return values that other StoredProcedures return.Rather than have my DataAccess layer access the DB multiple times, I would like to call One stored Procedure, and have that stored procedure call the others to get the information I need. I think this way would be more efficient than accessing the DB  multiple times. One of my SP is:SELECT I.ItemDetailID, I.ItemDetailStatusID, I.ItemDetailTypeID, I.Archived,     I.Expired, I.ExpireDate, I.Deleted, S.Name AS 'StatusName', S.ItemDetailStatusID,    S.InProgress as 'StatusInProgress', S.Color AS 'StatusColor',T.[Name] AS 'TypeName',    T.Prefix, T.Name AS 'ItemDetailTypeName', T.ItemDetailTypeID    FROM [Item].ItemDetails I    INNER JOIN Item.ItemDetailStatus S ON I.ItemDetailStatusID = S.ItemDetailStatusID    INNER JOIN [Item].ItemDetailTypes T ON I.ItemDetailTypeID = T.ItemDetailTypeID However, I already have StoredProcedures that return the exact same data from the ItemDetailStatus table and ItemDetailTypes table.Would it be better to do it above, and have more code to change when a new column/field is added, or more checks, or do something like:(This is not propper SQL) SELECT I.ItemDetailID, I.ItemDetailStatusID, I.ItemDetailTypeID, I.Archived,     I.Expired, I.ExpireDate, I.Deleted, EXEC [Item].ItemDetailStatusInfo I.ItemDetailStatusID, EXEC [Item].ItemDetailTypeInfo I.ItemDetailTypeID    FROM [Item].ItemDetails IOr something like that... Any thoughts? 

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