Indexes Need Rebuild After Restart Server???
Oct 4, 2007
Hi All.
Our inhouse app used to run on a SQL2000, but we've recently moved it to 2005.
The move was done by way of backup and restore (it was on a whole new server).
After the move, an odd problem showed up: once in a while, the server seems incapable of finding/using its indexes: everything starts working slowly, until I run a maintenance plan that rebuilds its indexes etc.
In the database/server all relevant options seem to be ok (auto update statictiscs etc.), and my conclusion that it doesn't use its indexes comes from the fact that:
* it gives the results from certain select statements in a totally different order (although the set of rows is the same),
* performance is (all of a sudden) very slow (seconds turning to minutes!!)
This happens:
* at least after a reboot of the server
* sometimes just in the middle of the day
The only way I've found to solve the matter, is by running the maintenance plan to rebuild the indexes, but sometimes this only seems to work the second time.
Does anybody share this experience, or know what to do about it?
Thanks,
Nick.
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Jun 25, 2015
I have a requirement to only rebuild the Clustered Indexes in the table ignoring the non clustered indexes as those are taken care of by the Clustered indexes.
In order to do that, I have taken the records based on the fragmentation %.
But unable to come up with a logic to only consider rebuilding the clustered indexes in the table.
create table #fragmentation
(
FragIndexId BigInt Identity(1,1),
--IDENTITY(int, 1, 1) AS FragIndexId,
DBNAME nvarchar(4000),
TableName nvarchar(4000),
[Code] ....
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Jul 27, 2015
Do I need to rebuild my indexes on my High Availability listeners?
When I do a full index rebuild on my primary DB's. Does rebuilding also send the rebuild to the listener(s)?
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Nov 5, 2015
If I rebuild some indexes that are above 30% of average fragmentation, should I after that update statistics?
Also, How can I see if I Need to update statistics^on the tables of my database?
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Oct 8, 2001
Hi All,
SQL 7 REQUIRES THE DBA TO MANAGE THE INDEXES AND IN PARTICULAR THE FILL FACTOR AVAILABILITY. DOES SQL SERVER 2000 AUTOMATICALLY ADDRESS THIS OR DO WE STILL HAVE TO PERIODICALLY RUN,
sp_MSforeachtable @command1="print '?' DBCC DBREINDEX ('?')"
TO REBUILD ALL INDEXES IN THE DATABASE?
Thanks in advance,
-Praveena
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Apr 1, 2008
Hi!
I'm not a dba at all, just a simple developer but I have got the assignment to help out with performance problems on a db.
I noticed that almost all indexes are fragmented 75-99%. Can I rebuild them when the database is in use? Can I reorganize indexes when the db is used?
/Magnus
Jesus saves. But Gretzky slaps in the rebound.
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Sep 11, 2007
In the maintance plans there is a Rebuild Index choice.
If u choose tables and views the plan executes
ALTER INDEX <index> ON <table> ;REBUILD
for all indexes in the datebase.
I am currently using this plan on our production DB, scheduled for every Saturday night.
I wonder if there is a downside of using maintance plans. Because it seems to be doing the job. Any comments?
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Dec 17, 2007
I am upgrading from SQL2000 to SQL2005.
I have restored my 2000 db to 2005.
I have changed the Compatiblilty level to 90.
Now I need to reindex.
How do I reindex all the tables at once?
Thanks for ALL your help
r/p
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Nov 12, 2006
how can run a command to rebuild all indexes in a database?
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Sep 18, 2007
So I'm reading http://www.sql-server-performance.com/tips/clustered_indexes_p2.aspx and I come across this:
When selecting a column to base your clustered index on, try to avoid columns that are frequently updated. Every time that a column used for a clustered index is modified, all of the non-clustered indexes must also be updated, creating additional overhead. [6.5, 7.0, 2000, 2005] Updated 3-5-2004
Does this mean if I have say a table called Item with a clustered index on a column in it called itemaddeddate, and several non-clustered indexes associated with that table, that if a record gets modified and it's itemaddeddate value changes, that ALL my indexes on that table will get rebuilt? Or is it referring to the table structure changing?
If so does this "pseudocode" example also cause this to occur:
sqlstring="select * from item where itemid=12345"
rs.open sqlstring, etc, etc, etc
rs.Fields("ItemName")="My New Item Name"
rs.Fields("ItemPrice")=1.00
rs.Update
Note I didn't explicitly change the value of rs.fields("ItemAddedDate")...does rs.Fields("ItemAddedDate")=rs.Fields("ItemAddedDate") occur implicitly, which would force the rebuild of all the non-clustered indexes?
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Sep 21, 2015
We have a script running everyday for rebuild and re-organisation of indexes. But, somehow its getting failed. Attached script for your consideration. There is no database name with amoperations. There is table called DatabaseObjectAudit but it exist on master db.
Message:
-->Start Index Maint
-> Gathering fragmentation information (can take a while!)
-> Gathering COMPLETE : Total of 43 databases were found.
-> Gathering COMPLETE : Total of 1622 indexes were found.
[code]...
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Jun 14, 2006
I have a number of databases that are being transactionally replicated from SQL 2000 Enterprise edition publisher to SQL 2005 Enterprise edition subscriber. I have included indexes in the replication. The subscriber database is then accessed and the data de-normalised and aggregated for reporting purposes.
My question is this: I want to periodically re-build the indexes on the publisher and subscriber via an automated task. If I rebuild the indexes on the publisher, will that automatically replicate to the subscriber? Will there be a problem with the "snapshot being out of date", and therefore replication stopping? I run a new snapshot once a day in the small hours of the morning. If there is likely to be a problem with the rebuild throwing the replication out, would it be wise to have the rebuild job running just before the new snapshot is taken?
Any help/advice appreciated.
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Sep 28, 2015
We are planning to standardize our newly deployed sql server, As a part of it we have configured 2 maintenance plans 1) Update Statistics which runs daily and 2) Index Reorganize which runs on weekly.
Apart from above, any other things to be in place for better maintenance of the sql server.
Also, how to Index Rebuild activity for clustered indexes requires any downtime.
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Jul 9, 2006
Hi,
I have found that when I'm debugging a custom component in BIDS that I've created in another instance of Visual Studio, every time I rebuild the component I have to shutdown and restart BIDS and then reattach to the BIDS process. Which is pretty time consuming... And if I find a small error in my custom component when debugging then I don't seem to be allowed to make any changes to the code unless I stop debugging and go through the process above.
Am I missing something here? Or do I really have to manually go through these steps every time I want to change code in the component I'm debugging?
Can I automate the process with MSBuild or NAnt? If so, is there an example of this anywhere?
Thanks in advance,
Lawrie.
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Mar 25, 2008
Hi,
I have a script to rebuild and reorganize indexes for sybase i.e reorg rebuild index... like command i have. Now i want similar command for MSSQLSqlserver.plz help me.
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Jul 9, 2015
I am using SQL Server 2008 (RTM) Standard Edition.
In my environment, one of my Database size is 75 gb and I have to create a plan for index rebuild using maintenance plan.But when we rebuild indexes, it requires some space on data and log files of database.how can we calculate disk space requirement for index rebuild process ?
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Sep 16, 2015
We have a maintenance plan running everyday for rebuild and re-organisation of indexes. But, somehow its getting failed. Here is the script that we are running for rebuild or re-org.
/*
Script to handle index maintenance
Tuning constants are set in-line current values are;
SET @MinFragmentation
SET @MaxFragmentation
SET @TrivialPageCount
[code]....
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Aug 23, 2015
Normally we use rebuild, reorganize indexes when it is required, I used a SQL job using maintenance plan to run daily and rebuild, reorganize indexes and update statistics but I do not know if it runs either they are required or not. Should this plan automatically execute the build upon required indexes to be rebuild or it fires either they are required to be executed or not.
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Sep 13, 2004
how can I configure the SQL server to automatically restart selected services on a regular basis?
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Sep 27, 2000
Has anyone ever experienced the SQL Server unexpectedly rebooting?
Yesterday my SQL Server 7 installation rebooted itself and the error log seemed fine as did the restart. The only evidence I can find was a message in the event viewer's application log stating the the MSSQLServer service terminated unexpectedly. Any ideas are appreciated.
Thanks,
- D
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Apr 3, 2001
I've a SQL server that intermittently restarts itself mostly during. Its a SQL Server 6.5 SP4 running NT 4.0 SP6. It really has no rhyme or reason to it happening. The are no indications in either the SQL or the Nt events logs.
Has anyone heard of this?
Thanks inadvance
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Aug 21, 2006
Hi,
I have a linked server set up to a proprietarty temporal DB through an OLEDB provider. From time to time and for various reasons the OLEDB provider crashes with "Error 7302 Could not create an instance of OLE DB Provider 'IhOLEDBProvider.iHistorian.1'. OLE DB Trace [Non Interface Error: CoCreate of DSO for IhOLEDBProvider.iHistorian.1 returned 0x80070008"
Up till now, to re-initilize the connection we have just restarted the SQL Server service. However, some automated processes are now feeding data into this server and more users and have started coming online so restarting for this issue has become a big deal.
Getting the OLEDB provider sorted out isn't an option at present so my question is:
Is there a way to re-initalise a failed linked server other that restarting the SQL Service?
Thanks,
Eamon.
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Feb 18, 2004
Hi,
I have SQL server running on windows Adv Server 2000. Since last couple days whole computer restart every one hours. Only thing I remember doing was to shrink database db size is 200+GB.
How can I fix this problem.
Any help will be highly appreciated?
Thanks.
Samir
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Apr 7, 2008
Hi,
I've got a table with a column that contains the status of available licenses to the user, i.e. they are either in use or are available. If the server goes down, then when it is restarted I need to make sure all the rows in this column describe each license as being available.
So the question is how can I ensure data in a table is, if you like, initialized, each time the server is restarted? Is there a system defined stored proc or trigger than is executed when a server is restarted?
Thanks.
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Mar 27, 2007
Hi...
i hv a database (sql server 2000) where i got locking on many tables and my application was down.
I restarted the sql server and the application was fine but after five minutes the same locking issue started happening. I did a index rebuild the next time on all indexes and everything was fine.But i cannot relate how locking occured and why it was not after index rebuild.Can anyone shed some light on this or anyone had similar experience... cos i cannot figure out a way on this.
Thanks in advance
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Jan 5, 2001
I acciently change the locale id of my sql server using sp_configure. After i stop the server it now can not be re-started. Any help is appreciated.
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Mar 18, 2002
Hello 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 ?
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Jan 26, 2007
I have an old application to maintain that uses CDatabase to connect to SQL Server. If SQL Server is stopped and restarted, such as in a cluster failover (i.e. move group), then the CDatabase connection needs to reconnect. It seems that it's not capable of doing this on it's own so I need to check the state some how. Various methods, such as IsOpen, seem to be useless as far as determining if I have a "good" connection.
Any thoughts?
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Apr 27, 2004
@@servername sometimes returns NULL depending on how you have been messing around with replication and various other settings.
The simple solution offered to fix this is to delete the entries in the system tables and sp_addserver 'servername','local' and then restart the SQL service.
This is fine but what do you do in the situation where the SQL server is a 24/7 production box ? Does anyone know of a method / hack to fix this without stopping the service ?
Thanks
s
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Jun 6, 2008
We were trying to restore our production server db backup in test server over LAN (due to space shortage on test server) . Test server hanged and did not respond for abt more than 15 hours (backup file 40 GB ) . The we restarted the server (resetting the power button) . Now it's showing the status 'Restoring' . According to me it's not doing anything (as seen in task manager workload ) . So how can I go ahead with checking the db .
Due to 'restoring' status I get following error
------------------------------------
Msg 927, Level 14, State 2, Line 1
Database 'envdb' cannot be opened. It is in the middle of a restore.
----------------------------------
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Nov 12, 2007
I am unable to login to the sql server as I would like to reboot the server, please let me know how I can do the following remotely in such a scenario:
1. Reboot the sql server
2. Restart the mssqlserver and sqlserveragent services
Thanks.
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Oct 31, 2007
I've installed an SSL certificate via IIS. I stopped sql server and agent but cannot restart them. I'm getting the following message in the error log:
2007-10-31 21:24:53.63 Server Error: 17182, Severity: 16, State: 1.
2007-10-31 21:24:53.63 Server TDSSNIClient initialization failed with error 0x2, status code 0x38.
2007-10-31 21:24:53.63 Server Error: 17182, Severity: 16, State: 1.
2007-10-31 21:24:53.63 Server TDSSNIClient initialization failed with error 0x2, status code 0x1.
2007-10-31 21:24:53.63 spid9s Starting up database 'model'.
2007-10-31 21:24:53.63 Server Error: 17826, Severity: 18, State: 3.
2007-10-31 21:24:53.63 Server Could not start the network library because of an internal error in the network library. To determine the cause, review the errors immediately preceding this one in the error log.
2007-10-31 21:24:53.63 Server Error: 17120, Severity: 16, State: 1.
2007-10-31 21:24:53.63 Server SQL Server could not spawn FRunCM thread. Check the SQL Server error log and the Windows event logs for information about possible related problems.
I've tried removing the SSL certificate but with no success.
Help! I'm starting to think that the only solution is to uninstall sql server 2005 and reinstall.
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