Query Tuning
May 22, 2006
I want to take the execution plan of some transact sql queries, I took the execution plan as text based one, that having
index scan, index seek
Remote scan, remote Update
sort order by cluases
in the above clauses what is the high performance, and how will i change to the high performance clauses by changin the query to improve the execution speed of the query
Please guide me
the execution plan is
SELECT [Inventory_Profile].[InventoryID] ,[Inventory_Profile].[Alias] ,[Inventory_Profile].[InventoryStatusID] ,[Inventory_Profile].[InventorySubTypeID] ,[Inventory_Profile].[InventoryTypeID] ,[Inventory_Profile].[AcquisitionDate] ,[Inventory_Profile].[UnitNumber] ,[Inventory_Profile].[YearOfManufacture] ,[Inventory_Profile].[Manufacturer] ,[Inventory_Profile].[Make] ,[Inventory_Profile].[Model] ,[Inventory_Profile].[SerialNumber] ,[Inventory_Profile].[UsageConditionID] ,[Inventory_Profile].[Description1] ,[Inventory_Profile].[Description2] ,[Inventory_Profile].[LocationEffectiveFromDate] ,[Inventory_Profile].[IsFlaggedForSale] ,[Inventory_Profile].[RentalPurchaseOrderNumber] ,[Inventory_Profile].[AquisitionPurchaseOrderNumber] ,[Inventory_Profile].[SortOrder] ,[Inventory_Profile].[IsSaleLeaseBack] ,[Inventory_Profile].[InterimRentReceivableUpfrontTaxModeID] ,[Inventory_Profile].[LeaseRentalReceivableUpfrontTaxModeID] ,[Inventory_Profile].[OverTermReceivableUpfrontTaxModeID] ,[TaxDepreciation_Inventory].[IsTaxDepreciationRequired] ,[TaxDepreciation_Inventory].[IsComputationPending] ,[TaxDepreciation_Inventory].[TaxDepreciationTemplateID] ,[TaxDepreciation_Inventory].[InventoryCostBasisAmount] ,[TaxDepreciation_Inventory].[DepreciationBeginDate] ,[TaxDepreciation_Inventory].[DepreciationEndDate] ,[TaxDepreciation_Inventory].[IsTaxDepreciationTerminated] ,[TaxDepreciation_Inventory].[IsStraightLineMethodUsed] ,[TaxDepreciation_Inventory].[IsLeaseTermUsedForStraightLineMethod] ,[Inventory_PTMS].[Division] ,[Inventory_PTMS].[Branch] ,[Inventory_PTMS].[SalesTaxPercent] ,[Inventory_PTMS].[SalesTaxAmount] ,[Inventory_PTMS].[IsSalesTaxIncluded] ,[Inventory_PTMS].[GLExpenseAccount] ,[Inventory_PTMS].[GLAssetAccount] ,[Inventory_PTMS].[SoftwareExclusionAmount] ,[Inventory_PTMS].[AssetCategoryCodeID] ,[Inventory_PTMS].[OwnershipCodeID] ,[Inventory_PTMS].[ManufacturingCodeID] ,[Inventory_PTMS].[ReimburseCodeID] ,[Inventory_PTMS].[BillingStatusID] ,[Inventory_PTMS].[PropertyTaxExemptionCodeID] ,[Inventory_PTMS].[UserDefinedField1] ,[Inventory_PTMS].[UserDefinedField2] ,[Inventory_PTMS].[Notes] FROM [Inventory_Profile] INNER JOIN [TaxDepreciation_Inventory] ON [Inventory_Profile].[InventoryID]=[TaxDepreciation_Inventory].[InventoryID] INNER JOIN [Inventory_PTMS] ON [Inventory_Profile].[InventoryID]=[Inventory_PTMS].[InventoryID] INNER JOIN [Inventory_Status_CnfgLocale] ON [Inventory_Profile].[InventoryStatusID] in (SELECT InventoryStatusID FROM Inventory_Status_CnfgLocale WHERE InventoryStatusName <> 'Donated' and InventoryStatusName <> 'Scrap' and InventoryStatusName <>'Write Off' and InventoryStatusName <> 'Sold')
|--Nested Loops(Inner Join)
|--Nested Loops(Inner Join, OUTER REFERENCES:([LW_Winthrop].[dbo].[TaxDepreciation_Inventory].[InventoryTaxDepreciationDetailID]))
| |--Nested Loops(Inner Join, OUTER REFERENCES:([LW_Winthrop].[dbo].[Inventory_PTMS].[InventoryID]))
| | |--Nested Loops(Left Semi Join, OUTER REFERENCES:([LW_Winthrop].[dbo].[Inventory_Profile].[InventoryStatusID]))
| | | |--Nested Loops(Inner Join, OUTER REFERENCES:([LW_Winthrop].[dbo].[Inventory_PTMS].[InventoryID]))
| | | | |--Clustered Index Scan(OBJECT:([LW_Winthrop].[dbo].[Inventory_PTMS].[PK_IInvPTMS]))
| | | | |--Clustered Index Seek(OBJECT:([LW_Winthrop].[dbo].[Inventory_Profile].[PK_IInventory_InvID]), SEEK:([LW_Winthrop].[dbo].[Inventory_Profile].[InventoryID]=[LW_Winthrop].[dbo].[Inventory_PTMS].[InventoryID]) ORDERED FORWARD)
| | | |--Clustered Index Seek(OBJECT:([LW_Winthrop].[dbo].[Inventory_Status_CnfgLocale].[PK_cdInvStatus_Locale]), SEEK:([LW_Winthrop].[dbo].[Inventory_Status_CnfgLocale].[InventoryStatusID]=[LW_Winthrop].[dbo].[Inventory_Profile].[InventoryStatusID]), WHERE:([LW_Winthrop].[dbo].[Inventory_Status_CnfgLocale].[InventoryStatusName]<>N'Donated' AND [LW_Winthrop].[dbo].[Inventory_Status_CnfgLocale].[InventoryStatusName]<>N'Scrap' AND [LW_Winthrop].[dbo].[Inventory_Status_CnfgLocale].[InventoryStatusName]<>N'Sold' AND [LW_Winthrop].[dbo].[Inventory_Status_CnfgLocale].[InventoryStatusName]<>N'Write Off') ORDERED FORWARD)
| | |--Index Seek(OBJECT:([LW_Winthrop].[dbo].[TaxDepreciation_Inventory].[UK_ITaxDepInfo]), SEEK:([LW_Winthrop].[dbo].[TaxDepreciation_Inventory].[InventoryID]=[LW_Winthrop].[dbo].[Inventory_PTMS].[InventoryID]) ORDERED FORWARD)
| |--Clustered Index Seek(OBJECT:([LW_Winthrop].[dbo].[TaxDepreciation_Inventory].[PK_ITaxDepInfo]), SEEK:([LW_Winthrop].[dbo].[TaxDepreciation_Inventory].[InventoryTaxDepreciationDetailID]=[LW_Winthrop].[dbo].[TaxDepreciation_Inventory].[InventoryTaxDepreciationDetailID]) LOOKUP ORDERED FORWARD)
|--Clustered Index Scan(OBJECT:([LW_Winthrop].[dbo].[Inventory_Status_CnfgLocale].[PK_cdInvStatus_Locale]))
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Nov 22, 2000
Hi
Is there any good books for Query Tuning and Stored procedure Tuning
Thanks
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May 28, 2008
Hi,
Mine Below Query takes considerable time at the time of execution.
Can any one help me, what is the other way to write this query?
Declare @p_Mkt_View_Id int
Set @p_Mkt_View_Id = 17
Select Distinct Customer_id From Active_Product_Cust_Dtl
Where Product_Group_Code in
(Select Distinct Product_Group_Code From Products
Where Product_code in (
select Distinct ProductId from pit
where pitid in (select pitid from marketviewdef
where mktviewid = @p_Mkt_View_Id)))
Thanks
Prashant
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Oct 25, 2007
Hi have this query which is taking too much time to execute..........I have tried the following options but not useful till now
1. NOLOCK
2. SET NO ROW COUNT
3. CHANGED DISK LOCATION OF TEMPDB
4. CHECKED %Processor Time
5. Checked pages.sec
Below is the query, any suggestions will be really helpful
SE IFRepository
--Query
--Returns count of txns whose status is not (10001 or 10002)
declare @fileruntimeuid int
declare @Pendingackcount int
set @Pendingackcount =0
set @fileruntimeuid =0
declare @clientname varchar(256)
set @clientname = NULL
declare @txncnt int
set @txncnt = 0
declare @FileNameClient varchar(256)
set @FileNameClient = NULL
declare @StageStatus int
set @StageStatus = 0
declare @StageDesc varchar(35)
declare PendingAcks cursor for
select distinct fileruntimeuid from tiffileruntime WITH (NOLOCK)
where filecreationdt >= convert(smalldatetime,'9-11-07')
and filecreationdt <= convert(smalldatetime,'9-12-07')
and statusid <> 2
--and filetypeuid in (1,8,16,17,18)
--and clientuid =1205
order by fileruntimeuid
--244873, 244883, 244885, 244892, 244893, 244925, 244926, 244966, 244967, 244873, 244883
Print 'File Life Cycle Viewer via Database'
Print '==========================================================================================='
Print 'Status FileRuntimeUID Client Name File Status File name'
Print '==========================================================================================='
Open PendingAcks
FETCH NEXT FROM PendingAcks
into @fileruntimeuid
WHILE @@FETCH_STATUS = 0
BEGIN
select top 1 @StageDesc = b.IFComponentDesc from TIFComponent b, TIFFIleProcessingStatus a
WITH (NOLOCK)
where a.IFComponentUID = b.IFComponentuid
and a.fileruntimeuid = @fileruntimeuid
order by a.FPROCStageStartDt desc-- a.IFComponentUID desc
select @clientname = ClientShortName from tifclientattrib
where clientuid = (select clientuid from tiffileruntime where fileruntimeuid = @fileruntimeuid)
select @StageStatus = statusid, @FileNameClient= FileNameClient from tiffileruntime where fileruntimeuid = @fileruntimeuid
select @txncnt = FProcTxnProcessedInTotal from tiffileprocessingstatus where fileruntimeuid = @fileruntimeuid and IFComponentUID = 5
--if @StageDesc = "" Begin @StageDesc = "------------" End
print RTRIM(convert(varchar(10),@StageStatus)) + ' ' + RTRIM(convert(varchar(10),@fileruntimeuid)) + ' ' + RTRIM(@clientname) + ' ' + @StageDesc + ' ' + RTRIM(@FileNameClient)
set @StageDesc = NULL
FETCH NEXT FROM PendingAcks
into @fileruntimeuid
END
Print '==========================================================================================='
close PendingAcks
deallocate PendingAcks
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Apr 10, 2007
Hello
I have 2 servers: myLocalServer (SQL2005) and myRemoteServer (SQL2000), both in the same LAN. I wish to syncronize a remote table with a local table (both share the same structure) by means of a stored procedure. The amount of rows to carry from the local to the remote table is about 20,000. The query takes more than a minute, and I would like to take down that time. Can you please help me?
myRemoteServer is declared in myLocalServer by means of a Linked Server object, and I declared a synonym called Syn_RemoteTable which represent the remote table.
First I tried a cursor, but it did not worked:
declare curLocalTable cursor local forward_only static read_only for
select ID, Value from myLocalTable where UpdateTimeStamp>@LastUpdate
open curLocalTable
fetch curLocalTable into @ID, @Value
while @@Fetch_Status=0
begin
if exists(select ID from Syn_RemoteTable where ID=@ID)
begin
update Syn_RemoteTable set Value=@Value where ID=@ID
end
else
begin
insert into Syn_RemoteTable (ID, Value) values (@ID, @Value)
end
fetch curVentasMensuales into @ID, @Value
end
close curLocalTable
deallocate curLocalTable
Other way that I tried -performing equally poorly- was:
update Syn_RemoteTable
set Value=T.Value
from Syn_RemoteTable
inner join
(
select ID, Value from myLocalTable where UpdateTimeStamp>@LastUpdate
) as T
on T.ID=Syn_RemoteTable.ID
insert into Syn_RemoteTable
(
ID,
Value
)
select
ID,
Value
from myLocalTable
where
UpdateTimeStamp>@LastUpdate and
ID not in (select ID from Syn_RemoteTable)
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Jul 20, 2005
Hi, I have problem running this query. It will time out for me...My database are small just about 200 members.I have a site for swaping appartments (rental). my query should lookfor matchin a triangle. Like this member A -> B->CA give his appartment to B. B gives his appartment to C and finallyC gives his appartment to ASoo my query looks for matching parameters like rooms, location, sizeandsoo on..I have one table for existing appartments and one for "whantedappartments"and 1 table called "intresse" where members can store "yes" or "no" ifthey are interessted in a appartment.I also have a table called "omrade" to store locations of interest.Hope you can helpe me with some tip soo i can run this query in a fewseconds instead of 20-30 secThanks MSELECTF.medlemsNr as medlemsNr, F.lfId AS lfId, F.ort AS ort, F.gatuadressAS gatuadress, F.gatuNr AS gatuNr, F.rum AS rum,F.storlek ASstorlek,F.hyra AS hyra, count(F.medlemsNr) As hitsFROMmedlem08 A, medlem08 B, medlem08 C, lagenhetF08 D,lagenhetO08 E, lagenhetF08 F, lagenhetO08 G, lagenhetF08 H,lagenhetO08 IWHERED.rum >= I.rumMin AND D.rum <= I.rumMax ANDD.storlek >= I.storlekMin AND D.storlek <= I.storlekMax ANDI.hyraMax = 0" & " OR D.hyra <= I.hyraMax) ANDI.balkong = '" & "" & "' OR D.balkong = I.balkong) AND(I.badkar = '" & "" & "' OR D.badkar = I.badkar) AND(I.bredband = '" & "" & "' OR D.bredband = I.bredband) AND(I.hiss = '" & "" & "' OR D.hiss = I.hiss) AND(I.spis = '" & "" & "' OR D.spis = I.spis) AND(I.brf = '" & "" & "' OR D.brf = I.brf) ANDD.postNr IN (select postNr from ONSKEMAL08 where loId=I.loId) ANDF.medlemsNr Not IN (select medlemsNr2 from INTRESSE08 wheremedlemsNr1=A.medlemsNr) ANDH.rum >= G.rumMin AND H.rum <= G.rumMax ANDH.storlek >= G.storlekMin AND H.storlek <= G.storlekMax AND(G.hyraMax = 0" & " OR H.hyra <= G.hyraMax) AND(G.balkong = '" & "" & "' OR H.balkong = G.balkong) AND(G.badkar = '" & "" & "' OR H.badkar = G.badkar) AND(G.bredband = '" & "" & "' OR H.bredband = G.bredband) AND(G.spis = '" & "" & "' OR H.spis = G.spis) AND(G.brf = '" & "" & "' OR H.brf = G.brf) ANDH.postNr IN (select postNr from ONSKEMAL08 where loId=G.loId) ANDF.rum >= E.rumMin AND F.rum <= E.rumMax ANDF.storlek >= E.storlekMin AND F.storlek <= E.storlekMax AND(E.hyraMax = 0" & " OR F.hyra <= E.hyraMax) AND(E.balkong = '" & "" & "' OR F.balkong = E.balkong) AND(E.badkar = '" & "" & "' OR F.badkar = E.badkar) AND(E.bredband = '" & "" & "' OR F.bredband = E.bredband) AND(E.hiss = '" & "" & "' OR F.hiss = E.hiss) AND(E.spis = '" & "" & "' OR F.spis = E.spis) AND(E.brf = '" & "" & "' OR F.brf = E.brf) ANDF.postNr IN (select postNr from ONSKEMAL08 where loId=E.loId) ANDA.medlemsNr=D.medlemsNr AND A.medlemsNr=E.medlemsNr ANDB.medlemsNr<>A.medlemsNr AND C.medlemsNr<>A.medlemsNr ANDB.medlemsNr<>C.medlemsNr ANDB.sparr<>1 AND C.sparr<>1 ANDA.typ=11 AND A.medlemsNr=" & session("medlemsNr") & " ANDB.medlemsNr=F.medlemsNr AND B.medlemsNr=G.medlemsNr ANDB.typ=11 AND A.triangel=1 AND B.triangel=1 AND C.triangel=1 AND " &_C.medlemsNr=H.medlemsNr AND C.medlemsNr=I.medlemsNr ANDC.typ=11 group by F.lfId, F.medlemsNr,F.ort,F.gatuadress,F.gatuNr,F.rum,F.storlek,F.hyra
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Apr 5, 2007
SELECT * FROM TA a WHERE a.rx=264886 and
AN= (select max(AN) FROM TA where rx=a.rx)
I have a table TA with 8+ million rows and there is clustered PK on (rx, AN) columns. The count on rx=264886 is 6000+ rows. This query takes about 1 to 2 minutes to fetch data. Can anyone suggest how to improve performance and fetch data faster?
Thanks, Vinnie
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Aug 26, 2015
I have a the following query which takes long time
DECLARE @ACCOUNTS TABLE(ACCOUNT_ID INT)
INSERT INTO @ACCOUNTS
SELECT ACCOUNT_ID FROM ACCOUNT
WHERE A_DESCR in ('AA', 'BB', 'CC', 'DD', 'EE', 'FF', 'GG')
I used the following key words: sql server query tuning in operator
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Mar 21, 2014
I am doing sp tuning. It has several lines. SO I divided into several small queries and executed individually and check the execution plans. In one small query, I found table scan is happening. That query is basically retrieving all columns from a table but the table doesn't have any pk or Indexes. So is it better to create non-clustered index to remove table sca.
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Nov 14, 2007
Hello all.
I have the following table
Create Table Item(
I_AssetCode NVarChar(40) Primary Key NOT NULL,
I_Name NVarChar(160),
I_BC nvarchar(20),
I_Company nvarchar(20)
);
Create Index ind_Item_Name on Item(I_Name);
Create Index ind_Item_BC on Item(I_BC);
Create Index ind_Item_Company on Item(I_Company);
It is populated with 50 000 records.
Searching on indexed columns is fast, but I've run into the following problem:
I need to get all distinct companies in the table.
I've tried with these two queries, but they both are very slow!
1. "select I_Company from item group by I_Company " - This one takes 19 seconds
2. "select distinct(I_Company) from item" -This one takes 29 secons
When I ran them through the SQL Management Studio and checked the performance plan, I saw that the second one doesn't use index at all ! So I focused on the first...
The first one used index (it took it 15% of the time), but then it ran the "stream aggregate" which took 85% of the time !
Actully 15% of 19 seconds - about 2 seconds is pretty much enough for me. But it looks that aggregate function is run for nothing!
So is it possible to force the query engine of the SSCE not to run it, since there is actually no aggregate functions in my select clause?
According to SQL CE Books online:
Group By
"Specifies the groups (equivalence classes) that output rows are to be placed in. If aggregate functions are included in the SELECT clause <select list>, the GROUP BY clause calculates a summary value for each group."
It seems the aggregate is run every time, not only when there is an aggregate function.
Is this a bug?
Thanks in advance,
TipoMan
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Jun 4, 2015
I am using SQL Server 2012 Express.
I am doing performance tuning of SP/Query in Dev-Test environment.
I found that SQL Server caches plan between successive executions.
So if I test/execute SP 10 times, after 1st or 2nd execution, SQL server will pull-up plan-info from CACHE...Not from SQL SERVER Or Database...
Means i am not getting correct answer...
I found this 2 commands:
DBCC FREEPROCCACHE
DBCC DROPCLEANBUFFERS
But they say that executing above command might interfere/bother other people executing other query/sp on this server.
They also say that: Freeing the plan cache causes, for example, a stored procedure to be recompiled instead of reused from the cache. This can cause a sudden, temporary decrease in query performance.
Part of query was using Dynamic-SQL executed with EXEC command.
I replaced that with SP_EXECUTESQL.
How can I start testing of each SP-run with Fresh/Blank CACHE ?
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Feb 21, 2005
Hey,
SQL Server 7.
I have a view which joins 3 tables. One has 15 million rows the next another 5 million and the third 500k.
When I join them the execution plan tells me that 15 million rows were retrieved from the first (taking about 5 mins) 1.5 million from the 2nd taking 3 mins and 4.5 million from the third taking almost no time.
The first two ause a clustered index, one being a seek the other a scan and the third a regular index seek. All followed by a hash match/inner join which takes 2 mins.
Any ideas on optimizing the SQL?
Here is the syntax:
SELECT b.packno, b.COMM_DATE, a.ben_grp_cr, a.ben_dsc_cr, c.gst_inc,
SUM(a.credit)
FROM TABC c INNER JOIN TABB B
ON b.PACKNO = c.PACKNO AND
b.COMM_DATE = BENDTL.COMM_DATE AND
b.BEN_NUM = c.BEN_NUM INNER JOIN
TABA a ON b.tran_id = a.tran_id
WHERE b.tran_date > '20040401' AND c.gst_inc = 0
GROUP BY b.packno, b.COMM_DATE, a.ben_grp_cr, a.ben_dsc_cr,
c.bendtl.gst_inc
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Jun 27, 2006
I tried on finding out the problem in a slow running sp with profiler. I found that there are some waiting resource 'tracewrite' and 'async_network_io'. Any idea on it? Thanks in advance
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Jan 15, 2002
I need to find a way to make this query run faster. Please let me know if you can help. Here are some of the issues.
1) I have a database with one table, and No indexes can be put in place.
2) This is a very large database. (4,000,000) records, and growing daily.
3) the following query returns 720,000 records.
4) The query takes about 18 minutes to complete.
I understand that by doing a table scan, the way this has to run is difficult, but is there anything I can do?
The Problem: When I run this query, I also run performance monitor, I have found that my page file is at 100%. I have 1 Gig of Ram on the server with 2 P III Xeion Processors. I don't know what other information I can give, but please let me know.
Thanks for you assistance
Troy
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Jun 7, 2001
I want to use the Index tuning wizard on some of my tables. Is it OK if I use when people are on the server or to do it during off-pick period. Thanks!!!
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Jul 9, 2001
Hey all,
I am interested in finding out if anyone out there has experience with extremely high-performance SQL Server applications. The I/O needs of my database server are growing very quickly, and I am on the verge of launching a major upgrade project.
We have done all the standard tuning tasks: proper indexing, stored procedure tuning, etc... and are running on good small-server scale hardware ( dual PIII 700s, 1G RAM, but no RAID). The only path I can see to achieving higher performance are:
- lots of RAID, perhaps on a SAN.
- server upgrade, maybe 4 proc? I've been looking at RAIDZONEs and Netfinity's
- data partitioning ( I REALLY want to avoid this if I can! )
What do you do when you need Major Enterprise scale database performance from SQL Server? I've found lots of resources for Oracle and DB2, but I can't find many case studies for serious SQL Server installations.
Help!
-Dave
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Jul 18, 2000
Hi,
does the upgradition SQL Server 6.5 to 7.0 will simply solve some problems which we are facing currently like ODBC errors Insert failed and update failed and also supporting more users ?
We have Access front end to SQL Server backend, so do we need to touch code in front end for optimizations ?
Can any pls guide me on this
Thanks
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Jan 25, 2000
Does anyone know of any good reference material on how to tune SQL Server 7?
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Nov 29, 1999
Other than the SQL Server 7.0 Index Tuner wizard (which isn't suggesting anything). Is there a 3rd party Index Tuner piece of software out there? Or is there something special that needs ot be done to get the SQL Index Tuner to work?
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Sep 1, 2000
Good Morning Everybody,
I had a single table consists of one million records. To retrive data from that table it takes lot of time. how i can reduce execution time?
what is the procedures to tune the database. i implemented cluster index on primary key of that table. still i can't able to reduce execution time.
can anybody help me in this issue?
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Nov 15, 1999
Hi, i am working on sql server 6.5 version.actually this is developed just one year back. but now the system is almost dead(low performance).i think the reasons r database design,networking,hardware etc.is it correct. and how to rectify these errors. i am suggesting that upgradation is the best option.so pl give the suggestions asap.
Thanx
Janreddy
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Feb 27, 2001
Hi,
Anyone know any articles on Performance Tuning on the web? I'm trying to monitor one of my production boxes and don't know which counters to use.
Thanks!
Joe R.
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Feb 13, 2007
Hi All,
What are some of the things i can do to improve query performance if the querey performance is realatively slow today compared to yesterday's performance:
Here are some of things i looked at:
-updating statistics
-checking the execution plan
-DBCC showcontig
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Jun 13, 2002
Hi !
In the older versions 6.5-7.0 you could adjust max_async_io setting if you had fast controllers and disks that could handle more IO from SQLServer. In 2000 this setting is removed. Are there any settings that I could adjust/tune regarding IO and disk handling ?
Regards Mattias
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May 17, 2007
What all possible ways there have been to maximizing performance of database?
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Aug 2, 2007
Hello-
Can some one give links to SQL Server tuning and applications performace.
I am looking for some examples which i can use in interviews .
thanks.
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Aug 23, 2007
how to increase performance through management studio
except making indexes
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Mar 7, 2008
Hi Guys I need someone to assist me in having full understanding of what performance turning is. My Challenge is interpreting the System Monitor Graph of Performance tools.
I needed to know what does the value on vertical axis represent, while there is non on the horizontal axis rather I have Last, Average, Minimum, Maximum and Duration; Please What does all this value stands for, I indeed observe that when I click on any of the counters selected the value changes, therefore kindly assist me so that I can make meaning of this. Apart from all this please assist me with any material that can explain performance tuning to my maximum benefit, thanks in anticipation.
Pls Check below sample of the file is attached
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Jun 11, 2008
Hi All,
I am new to this forum, would like to know about performance tuning methods in sql and which is the best site to read about it?
Thanks
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Mar 13, 2007
Hi experts,
I've run sql profiler with %processor time counter .it showed a large value of 75
so please give me steps to tune the long running query with high cpu utilisation.
thanks in advance
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Jul 26, 2007
for what purpose we are splitting the non-clustered index into 3 instead of 1
create index si_acct_info_dtl_INDX1 on si_acct_info_dtl(account_code, ctrl_acct_type)
create index si_doc_hdrfk_ci_acct_info_dtl on si_acct_info_dtl(tran_ou, tran_type, tran_no)
whether index rebuit everycolumn when search is given????.if we build the index in one
statement like this:create index si_acct on si_acct_info_dtl(batch_id)
create index si_acct_info_dtl_guid on si_acct_info_dtl(batch_id,account_code, ctrl_acct_type,tran_ou, tran_type, tran_no)
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Aug 23, 2007
i just wanna know how to reduce the performance of the query
can any one pls help me in the gaining the performance of query
SELECT
tblBankruptcyInfo.MasterID,
tblBankruptcyInfo.bk_Case_Number
INTO #ActiveBK
FROM FNFBSDataMart.dbo.tblReferral tblReferral WITH (NOLOCK)
INNER JOIN FNFBSDataMart.dbo.tblBankruptcyInfo tblBankruptcyInfo WITH (NOLOCK)
ON tblReferral.RefID = tblBankruptcyInfo.RefID
AND tblReferral.CloseDate IS NULL
INNER JOIN FNFBSDataMart.dbo.tblSuperClientFile tblSuperClientFile WITH (NOLOCK)
ON tblReferral.ClientFileID = tblSuperClientFile.ClientFileID
AND tblSuperClientFile.SuperClientVendorID IN (1816,125,127,1706,766,1820,137,141,144,145,1593,1808,146,990,1745,149,1215,1854,1867)
GROUP BY
tblBankruptcyInfo.MasterID,
tblBankruptcyInfo.bk_Case_Number
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Nov 19, 2007
Hi all ,
I am doing performance tuning in sql
I have a query which it gives result in 70000 rows and time is taken 7 mints .
But i want one query is not more than 50000 row
my query is :-
SELECT
QPDMADM.LAR_OMEGA_TRANS_SUM.SOURCE_TRANSACTION_ID,
QPDMADM.LAR_OMEGA_TRANS_SUM.ORDER_DATE,
QPDMADM.LAR_OMEGA_TRANS_SUM.SHIP_DATE,
QPDMADM.LAR_OMEGA_TRANS_SUM.FISCAL_PERIOD,
QPDMADM.LAR_OMEGA_TRANS_SUM.DISCOUNT_AGREEMENT_ID,
QPDMADM.LAR_OMEGA_TRANS_SUM.PRODUCT_ID_07,
QPDMADM.LAR_OMEGA_TRANS_SUM.CUSTOMER_ID_14,
QPDMADM.LAR_OMEGA_TRANS_SUM.ISO_COUNTRY_CODE2,
QPDMADM.LAR_OMEGA_TRANS_SUM.ACCOUNT_TYPE_CODE,
QPDMADM.LAR_OMEGA_TRANS_SUM.END_USER_CUSTOMER_ID,
sum(QPDMADM.LAR_OMEGA_TRANS_SUM.NIA_AMT),
QPDMADM.LAR_OMEGA_TRANS_SUM.INDUSTRY_CLUSTER_CODE,
QPDMADM.LAR_OMEGA_TRANS_SUM.SOURCE_SYSTEM_ID,
QPDMADM.LAR_OMEGA_TRANS_SUM.LOAD_DATE
FROM
QPDMADM.LAR_OMEGA_TRANS_SUM
WHERE
(
QPDMADM.LAR_OMEGA_TRANS_SUM.FISCAL_PERIOD = '200712'
)
GROUP BY
QPDMADM.LAR_OMEGA_TRANS_SUM.SOURCE_TRANSACTION_ID,
QPDMADM.LAR_OMEGA_TRANS_SUM.ORDER_DATE,
QPDMADM.LAR_OMEGA_TRANS_SUM.SHIP_DATE,
QPDMADM.LAR_OMEGA_TRANS_SUM.FISCAL_PERIOD,
QPDMADM.LAR_OMEGA_TRANS_SUM.DISCOUNT_AGREEMENT_ID,
QPDMADM.LAR_OMEGA_TRANS_SUM.PRODUCT_ID_07,
QPDMADM.LAR_OMEGA_TRANS_SUM.CUSTOMER_ID_14,
QPDMADM.LAR_OMEGA_TRANS_SUM.ISO_COUNTRY_CODE2,
QPDMADM.LAR_OMEGA_TRANS_SUM.ACCOUNT_TYPE_CODE,
QPDMADM.LAR_OMEGA_TRANS_SUM.END_USER_CUSTOMER_ID,
QPDMADM.LAR_OMEGA_TRANS_SUM.INDUSTRY_CLUSTER_CODE,
QPDMADM.LAR_OMEGA_TRANS_SUM.SOURCE_SYSTEM_ID,
QPDMADM.LAR_OMEGA_TRANS_SUM.LOAD_DATE
Note:- FISCAL_PERIOD is index only
Thank & Regards,
Anil
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