Why Does Restarting Speed Performance?
Dec 19, 2006Why does restarting my server improve SQL's performance so dramatically? What can I do to achieve the same effect, without restarting? Thanks for any ideas.
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¿What Improves SQL Server Performance? HD Speed, Processor Speed Or Ram?
Oct 18, 2007
Hi,
I have several data bases on a server (SQL Server 2000 only, no web server installed) and lately, as the company keeps gowing, my users complain saying the server gets slow, (this dbs are well designed and recieve optimizations and integrity checks, etc) because of this, Im thinking about getting a new server to repleace my old ProLiant ML 330 which was bought 4 years ago but Im concerned about what server arquitecture or characteristic can help me best to improve response performance, is it HD speed? Processor speed? or more Ram? I want to make a good decision, so I´d really appreciate your help...
Thanks, Luis Luevano
Performance Question - Restarting The SQL Server Resolved My Timeout Problem
Jul 20, 2005We have an ASP application installed on one powerful Win 2003 andthe SQL Server on another Win 2003.We have two copies of the application (identical, one for productionand one for test purposes) that are operational. The 2nd applicationis connected to the same SQL Server but a test copy of the productiondatabase.Today, running the application, a place where it shows a list of records,the ASP application was timing out after 30 seconds for a lot of users.I backed up the production db and restored it over the test db and testedthe ASP application; within 10-15 seconds the ASP page loaded the listof the records, so i didn't get any timeout. So i started to think thatmaybethe test db when it was being restored, SQL Server would do some kind ofdata cleanup and defragment the new db.But, then i checked the Task Manager, SQL Server was almost using 1.2GBof memory and the server had only 100megs available.As soon as i restarted the SQL Server, the ASP page did no longer timeouton the production database.So now i am trying to figure out why the SQL Server restart fixed myproblem?Unfortunately i did not check if there were a lot of connections in theProcess infounder the Current Activity in SQL EM.Do you think there were a lot of sessions that weren't killed by theapplication?And that was causing the timeout? But why only for the Production db and notalsofor the test db?I mean, i am puzzled as to why before restarting the SQL Server, running theASPapplication connected to the TEST database did not time out!As always, I appreciate any feedback, comments.Thank you
View 1 Replies View RelatedSql Server And Vpn: Performance/speed
Jul 23, 2005Hello NG,We have a performance problem in using a clientserver solution based on MS SQL-Server 2000 througha VPN tunnel (via broadband internet connection).The SQL Server is running on a Windows 2003 Serverwhich is configured as VPN server as well.We figured out that not the performanceof the VPN tunnel itself is the problem,but the problem is the access to the MS SQL Server.We tested it by executing sql statements on the Query Analyzeron the VPN client (WIN XP built in) which is connected to the serverthrough the tunnel.For example execution of the SELECT statement"select TOP 1000 * from Items" on thedatabase trough the tunnel takes more than 30 times as muchthan the same execution on the server itself or within theserver's local network.But we can make FTP downloads from our server throughthe tunnel with 600 KBit/s under same conditionsso the bandwidth of the tunnel should not be the problem.Do you have any ideas how we can accelerate thisor does any one has made experiencesrelated to this topic?Thanks for your help!JENS
View 5 Replies View RelatedRecording Speed Performance
Jul 10, 2007Hello,
I am looking for information on the SQL server 2005 performance, mainly on the data recording speed. I have a project where I have to save approximately 20000 analogical value per second.
Thanks
Alan
Restarting SQL Agent
Nov 13, 2000I have a problem where developers will stop the SQLServer service during the day and then they will not remember to restart the SQLAgent. It does not seem to restart when you stop the Server service and restart the services with out a reboot. Is there a setting somewhere in Enterprise Manager where I can tell the Agent service to restart with the Service service?
View 4 Replies View RelatedVS 2005 Keeps On Restarting
Feb 18, 2008my VS 2005 keeps on restarting even if im executing a small query only. what could be causing this?
View 2 Replies View RelatedRestarting Sql Agent
Jul 26, 2007hello
i have a question regarding sql agent. Is it ok to restart the agent any time (i need to restart it for enabling the email alert option in sql agent properties..otherwise it doesnt work)? Does restarting sql agent affect replication jobs and other scheduled jobs? Are there any issues restarting agent on production?
Any help appreciated
Thanks
Restarting SQL And Sending An Email
Dec 30, 1999If SQL is restarted for any reason, I need SQL server to send emails to others letting them know that the server is has restarted once it comes back up.
Is there an Error # that I can build an Alert on? Ideas???
Thank you,
tw
Error While Connecting After Restarting The PC
May 3, 2007Hi,
I am running SQL Server Enterprise manager. I was able to connected to the database properly. But after restarting the PC I am getting the following error.
"System.NullReferenceException: Object reference not set to an instance of an object"
The following event where logged in event viewer.
under security: 560, 562, 538, 528.
under system: 7035, 7036
could anbody give hint how to solve this issue?
Sql Agent Would Not Restart After Restarting Sql Server
Mar 18, 2002Hello everybody
I setup Sql agent for autostart with sql server and autorestart if stoped
but after rebooting NT or after stoping SQL server it never starts ,I have to start it manualy
Where to look for problem ?
SQL 2012 :: Gaps After Restarting Server
Jun 19, 2012Create a table with an Identity column, insert data / restart the server / insert more data / restart the server/ insert some more data.
My data looks like this :
Identity column
1
2
3
1002
1003
1004
1005
2002
2004
It looks like the indentity value gain +~1000 after most server restart (sometimes identity stay the same). This can be very dangerous for some datatype! The only thing google told me was this : URL...but microsoft did not comment on it yet!
Schedule Restarting Of Sql Server Services
Nov 27, 2007I want to schedule a sql job to run at specific time for restarting the sql services(MSSQLServer and SQLServerAgent) and also want to send notification to all the users 5 minutes before restarting them. Please let me know. Thanks in advance.
View 4 Replies View RelatedStopping And Restarting Transactional Replication
Jan 31, 2006The situation is as follows: Database A is being replicated to database B on a networked server. The application vendor is in the process of doing customizations which require frequent table changes. So the vendor (who has access to the replicated DB) stops replication in order to upgrade some tables. But I am finding that either he has forgotten to restart replication or, more than likely, has broken it.
So, if anyone is able to comment on a process which will allow changes to database tables and the restoration of replication, I would be very grateful. thanks in advance.
Restarting SQL Server Agent On Live Env.
Jul 20, 2006I need to restart (becouse of the Database Mail :( ) SQL Server Agent on a live server which acts as a distributor for a lot of replications. I know that it shouldn't cause any problem, but I want to confirm that it want couse a subscriptions to be reinitiated.
Thanks in advance for quick reply
Getting Rid Of #temp Tables Without Restarting SQL Service
Aug 29, 2006If you create a #temp table on stored procedure #1
and then call another stored procedure #2 from #1; if stored procedure #2 has an error in it, the #temp table will not release even though stored procedure #1 has a drop table statement in it.
Restarting The Identity Column On Table Variable
Jun 2, 2006In a cursor, I declare a table variable like so:
DECLARE @TempTable TABLE(RowID INT IDENTITY, valueID int)
I then insert into that table from another table. The purpose is to get a list that looks like this after the insert:
RowID valueID1 348972 345223 94822
etc....
However, the next time through my loop (cursor) I want to restart my RowID identity property, because the next batch of valueID's should then again have a RowID starting from 1.
I tried
delete from @TempTable DBCC CHECKIDENT(@TempTable , RESEED, 0)
but I get 'Must declare the variable @TempTable table' error.
Is there a way to destroy and recreate that @TempTable variable?
Error Restarting MSSQL After Moving System DB's
Dec 8, 2007Hello,
I have moved the system databases master and mssqlsystermresource database. And after that I was unable to restart the MSSQL Server service. This is SQL Server 2005
I had moved the master db under the minimal configuration. using the parameters /f and /T3608
What can I do to restart the SQL
Thanks
Error Restarting MSSQL After Moving System DB's
Dec 8, 2007Hello,
I have moved the system databases master and mssqlsystermresource database. And after that I was unable to restart the MSSQL Server service. This is SQL Server 2005
I had moved the master db under the minimal configuration. using the parameters /f and /T3608
What can I do to restart the SQL
Thanks
Error Restarting MSSQL After Moving System DB's
Dec 8, 2007Hello,
I have moved the system databases master and mssqlsystermresource database. And after that I was unable to restart the MSSQL Server service. This is SQL Server 2005
I had moved the master db under the minimal configuration. using the parameters /f and /T3608
What can I do to restart the SQL
Thanks
How Stopping And Restarting Full Text Indexing?
Jul 23, 2005Hi,I've got a full text index which works fine, SQLSERVER2000/WIN 2000 SERVER.The system requires to update indexes immediately, so I use a timestampfield to enable this. No problems so far.Now, I've got a stored procedures which nearly daily inserts about 10.000rows. When doing this while full text indexing is active, all users startcomplaining about performance. In order to work around this problem I trieddoing the following ...Create myStoredProcedure-- begin of stored procedureexec sp_fulltext_table 'adsfull', 'stop_background_updateindex'exec sp_fulltext_table 'adsfull', 'stop_change_tracking'---- insert 10.000 rows---- end of stored procedureexec sp_fulltext_table 'adsfull', 'start_change_tracking'exec sp_fulltext_table 'adsfull', 'start_background_updateindex'Now, it seems this doesn't work. SQL Server keeps tracking changes andupdating indexes. Also if I cut away the stop instructions and paste theminto query analyzer before starting the stored procedure.So, if I check the status via select fulltextcatalogproperty('FTADS','Populatestatus') ... it returns value 6 (incremental in progress) insteadof 0 (idle) while executing(0=idle, 1=full population in progress, 6=incremental in progress, 9=changetracking)The only way I can resolve this issue is to stop the indexing via theenterprise manager and to restart after the stored procedure is executed.Any help appreciated.--Kind regards,Perre Van Wilrijk,Remove capitals to get my real email address,
View 1 Replies View RelatedAn Error Occurred During Recovery / Preventing Database From Restarting
Oct 13, 2015We are running SQL Server 2014 Web Edition (64-bit). On three occasions now we have had two of our live secondary log shipping databases become unusable through the log shipping process. We ship logs to these databases every five minutes, and generally the process works fine. However, on three occasions in as many months we have suddenly received alerts warning us that the transaction log restores could not be performed on the secondary databases. The SQL Server Error Log revealed the following:
Date,Source,Severity,Message
10/13/2015 04:01:16,spid52,Unknown,Setting database option SINGLE_USER to ON for database 'ObfuscatedName'.
10/13/2015 04:01:17,spid52,Unknown,Starting up database 'ObfuscatedName'.
10/13/2015 04:01:17,spid52,Unknown,Recovery is writing a checkpoint in database 'ObfuscatedName' (8). This is an informational message only.
[code].....
An error occurred during recovery, preventing the database 'ObfuscatedName' (8:0) from restarting. Diagnose the recovery errors and fix them, or restore from a known good backup. If errors are not corrected or expected, contact Technical Support."
The extract above shows two previously successful restores to the secondary database. Suddenly, at 04:11:16, the database can no longer be started up or restored to. This is despite CHECKDB giving a clean bill of health only five minutes earlier. The result is that the last three lines are then repeated ad infinitum.
The only way we have managed to get around this issue so far is to replace the secondary database with a recent backup of the primary. Once this is in place, any outstanding transaction logs are successfully applied when the log shipping restore job next runs. However, this seems rather drastic.It is rather concerning that our warm-standby databases continue to become corrupted without any apparent explanation from SQL Server.
Upon Restarting User Defined Function Took Seemingly Forever To Run
Oct 16, 2006Upon restarting user defined function took seemingly forever to run
I am learning about nested while loops being used in some interdependent user defined functions. They seemed to work OK for a while.
Later, remembering how I lost the database due to hard disk reformatting, I backed up the database and copied it to a rewritable CD.
As the data is not really significant I deleted the database and practiced restoring the database from the CD.
This morning I restarted the user defined function and ran it. After more than half an hour with no result I gave up. Normally it took much less time to run such a user defined function.
I re-ran some other UDF and they worked. However, after I made some minor amendments to the TSQL scripts, saved the UDF and re-ran it, and it again seemed to take forever to run, even when I had set the counter in to while loop to 2.
I don€™t know what had gone wrong.
I went to register my copy of SQL 2005 EXPRESS. It didn€™t seem to help.
Suggestion and advice are much appreciated.
SQL 2012 :: Seed Value Of Identity Columns Jumps / Gaps By 1000 After Restarting It?
Jan 9, 2015We just switched from Sql server 2008R2 to Sql server 2012.I am facing one problem with identity Columns "When ever i restarts my sql server,the seed value for each identity column is increased by 1000 (For int identity column it is 1000 and for big int it is 10000).
"For Example if seed value of any table was 3 then after restarting sql server will be 1003 if i again restart sql server it will be 2003 and so on."
After searching on google i found that it is a new feature (don't know what is use of it) in sql server 2012 and having only two solution if you want old identity concept
1. Use sequence object -
a) I am using same database in sql server 2008 and 2012 both so can't use sequence in 2008.
b) if i go with sequence then need not change save procedure for each table,which is bulky task for us.
2. Use Trace Flag 272 (-T272)
I can go with this solution because there is need not do any changes in my application.Some one suggested me that add -T272 in startup parameter,after this sql server identity column will work normal as previous version.I did the same but it is not working.
I don't want to do any changes in my database structure.
how to use this -T272 or why it is not working.
I don't want to use this new identity feature how to suppress it. Why -T272 is not working.
Why Does Error Log Show Database Restarting Everytime A Transactionlog Backup Runs?
Feb 11, 2008Why does Error log show database restarting everytime a transactionlog backup runs?It also runs a checkdb as well.The log backups are scheduled through a maintenance plan.Is this normal?
View 1 Replies View RelatedSQL Speed
Sep 19, 2006Andy writes "I have data with more than 4 milions. How to speed up query it ?"
View 3 Replies View RelatedSpeed
Mar 9, 2007hello,
i need some opinion on how to sum up or group by more than 2k records faster.. eg, how do i optimize this?
SELECT DISTINCT r.ClientID,c.ClientName, r.ItemID, r.StockID,r.StockName, r.ExpectedQty,r.QCQty,r.AVAQty,r.PNDQty as pnd, r.VMIQCQty,r.VMIAVAQty,r.VMIPNDQty as vmipnd,
(Select isnull( SUM(d.HoldQty) ,0) FROM tblItemdetail d WHERE d.itemid=r.itemid AND d.ConsignorID=@ClientID AND d.Ownerstatus='VMI') AS VMIPNDQty,
(Select isnull( SUM(d.HoldQty) ,0) FROM tblItemdetail d WHERE d.itemid=r.itemid AND d.ConsignorID=@ClientID AND d.Ownership= i.Supplier AND d.Ownerstatus='VMI') AS PNDQty,
(Select isnull(SUM(d.OriginQty - d.PickQty -d.HoldQty -d.qcqty),0) FROM tblItemDetail d WHERE d.ConsignorID=@ClientID AND d.Ownership= i.Supplier AND d.Ownerstatus='OWN') AS StockAtCustAVAQty,
(Select isnull(SUM(d.HoldQty),0) FROM tblItemDetail d WHERE d.ConsignorID=@ClientID AND d.Ownership= i.Supplier AND d.Ownerstatus='OWN') AS StockAtCustPNDQty,
(Select isnull(SUM(d.qcqty),0) FROM tblItemDetail d WHERE d.ConsignorID=@ClientID AND d.Ownership= i.Supplier AND d.Ownerstatus='OWN') AS StockAtCustQCQty
FROM tblItemCrossRef r
INNER JOIN tblClient c ON c.ClientID=r.ClientID
INNER JOIN tblItemClients i on i.Supplier=r.ClientID
WHERE r.ClientID=@ClientID AND r.StockID LIKE @StockID+'%'
~~~Focus on problem, not solution~~~
Speed Up UDF
Jun 22, 2006Hello all-Given the following UDF, in sql 2000 can it be sped up, complied oranything of the like. A query returning 300,000 + rows times out whenran through the udf, inline case statements returns the rows in 5seconds.Thanks!JeffCREATE FUNCTION dbo.TimeFormat(@input datetime,@groupformatvarchar(20) --DAY, WEEK, MONTH)RETURNS datetimeASBEGINdeclare @dtvar as datetimeif @groupformat = 'DAY'set @dtvar = CAST(CONVERT(char(10), @input, 101) AS datetime)else if @groupformat = 'WEEK'set @dtvar = CAST(DATEADD([DAY], 1 - DATEPART(dw, CONVERT(char(10),@input, 101)), CONVERT(char(10), @input, 101)) AS datetime)else if @groupformat = 'MONTH'set @dtvar = CAST(CONVERT(CHAR(6), @input, 112) + '01' AS datetime)return @dtvarEND
View 9 Replies View RelatedI Need BETWEEN On Speed
Jul 20, 2005This is x-posted in:alt.php.sqlcomp.databases.ms-sqlservermicrosoft.public.sqlserver.programmingI have events that occur during the day. I want to be able to search thoseby a form with checkboxes (multiple select).Let's say for instance an event is happening from 3-10pm. When someonesearches for 4-6 (checkbox option) it needs to show up.I don't need code so much as I just need theory. My theory that I coded outand worked, just a missight in theory is as follows. I did a BETWEEN callthat pulled any event that began BETWEEN 4 AND 6 or ended BETWEEN 4 AND 6.As you can see. The event spans that time, but does not start or stopbetween 4 and 6, thus was not pulled. Ooops.So if someone call tell me of another function or perhaps just a better wayto use BETWEEN that would be great. I don't think that code is necessary atthis juncture, so save the 'Please post code' post :) Thanks.
View 12 Replies View Related[Performance Discussion] To Schedule A Time For Mssql Command, Which Way Would Be Faster And Get A Better Performance?
Sep 12, 20041. Use mssql server agent service to take the schedule
2. Use a .NET windows service with timers to call SqlClientConnection
above, which way would be faster and get a better performance?
Sp_executesql And Speed
Jul 12, 2006Hello,
I am using sp_executesql this to pass parameter to sql string and I am seeing deadlock between sp_prepexec which does UPDATE with another UPDATE done by another process. When it comes to speed and deadlock, would you recomand not using sp_executesql?
Speed Up Query
Jan 17, 2007Hi,
Can anyone tell me a way to speed up these querys?
//This is selecting a number of records (sent by user) from a table and randomizing those
tempSQL.Text = "select top " + amount.Text + " number from [" + src.Text + "] Where pull='N' order by newID()";
SqlConnection conn2 = new SqlConnection(ConfigurationManager.ConnectionStrings["MyDB"].ConnectionString);
conn2.Open();
SqlCommand cmd3 = new SqlCommand(tempSQL.Text, conn2);
cmd3.CommandTimeout = 1000;
SqlDataReader dr = cmd3.ExecuteReader();
//Then I open a data reader that uses the records
SqlConnection conn2a = new SqlConnection(ConfigurationManager.ConnectionStrings["MyDB"].ConnectionString);
conn2a.Open();
while (dr.Read())
{
//the records are then placed 1 by one into a temp table
string fillresultID = "Insert into [" + src.Text + "_Additional_Temp] (number) Values('" + dr["number"] + "')";
SqlCommand cmd4 = new SqlCommand(fillresultID, conn2a);
cmd4.CommandTimeout = 0;
cmd4.ExecuteNonQuery();
//then the original table that held the numbers is marked as used(again one by one)
string update = "Update [" + src.Text + "] set pull='Y' where number='" + dr["number"] + "'";
SqlCommand cmd5 = new SqlCommand(update, conn2a);
cmd5.CommandTimeout = 0;
cmd5.ExecuteNonQuery();
}
dr.Close();
conn2.Close();
conn2a.Close();
Thanks,
Doug
How Can I Speed Up This Query
Apr 22, 2008Hi, how can i speed up this query, it seems to be taking a very long time to bring back the reults;
--This stored procedure retrieves access rights for usersCREATE PROCEDURE wc_User_Access_Right_List
ASSELECT dbo.tblRep.Rep_ID, RTRIM(dbo.tblRep.Rep_Forename) + ' ' + RTRIM(dbo.tblRep.Rep_Surname) AS User_Full_Name, dbo.tblAccessRight.Access_Right, dbo.tblAccessRight.Access_Right_IDFROM dbo.tblRep LEFT OUTER JOIN dbo.tblAccessRight ON dbo.tblRep.Access_Right_ID = dbo.tblAccessRight.Access_Right_ID ORDER BY User_Full_Name
--Make sure this has saved, if not return 10 as this is unexpected error
IF @@rowcount = 0 return 10
DECLARE @RETURN_VALUE tinyintIF @@error <>0 RETURN @@errorGO