Reindexing A Database...
Oct 18, 2007
All,
I've got a medium sized database in a mirror configuration with witness. The database size is about 300gb and I would to reindex all of the tables in the database. My process would go something like this:
1) Backup principal
2) Break the mirror
3) Set the principal database to simple recovery mode
4) Perform the reindexing
5) Backup the principal and transfer that backup to the mirror
6) Restore the backup
7) Re-establish the mirror
Does anyone see any issues with the process itself?
Regards,
Ian
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May 27, 2008
hi
i have reindex of the tables
is it really improve performance that making table reindexing ?
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Sep 5, 2006
I need to reindex all tables in my database and would like to do this without using a Cursor. What is the simplest way to achieve this.
Cheers
Nat
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Apr 25, 2008
Hi,
We have scheduled a job for DB Reindexing (Maitinance Plan) for a OLTP database on sunday.
We have used mirroring for automatic failover with a witness server now the DR Reindexing job fails after 30 mins without any error.
Please let me know why Database reindexing gets failed.
Regards
Sufian
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Apr 15, 2002
Attempt to fetch logical page (1:166354) in database 'pm_pmc_prod' belongs to object '837120', not to object 'ng_visit'.
I got his error while importing data into the error, when i ran dbcc checkdb it gave me Msg 8928,8942,8976 etct witl serverity level 16...
is it possible to fix this curropt tables?
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Jun 22, 1999
We load tables from text files for inquiries.
My procedure is to truncate the table
Use DTS to move the text file into the table
do the command DBCC DBREINDEX (TABLE,'')
Am I wasting my time?
Does SQL 7 rebuild the indicis as it loads the data from the text file?
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Aug 16, 2006
Hello guys,
Two things:
1) Could somebody explain me how to reindex all tables in my db?
2) How do I know when I should reindex my db?
Thank you very much for any help!
Regards,
Fabian
my favorit hoster is ASPnix : www.aspnix.com !
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Sep 17, 2001
I've just recently tried to perform a scheduled reindexing job with the following command:
EXEC sp_MSforeachtable @command1="print '?' DBCC DBREINDEX ('?')"
Unfortunately, this command has only finished once of the five or six times I've tried to run it. The times it has failed, it deadlocks behind what seems to be a succession of other transactions. How can I make sure this command finishes?
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Dec 27, 2002
Hello Everyone,
I need to rebuild all indexes in one table, is there any command that will do automatically instead of deleting and recreating them all?
Any help will be appreciated.
Thanks
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Nov 15, 2007
Hi All,
is it really improve performance that making table reindexing?
what i mean to say is i've one script, which will automatically drops all the indexes in a database, and reconstruct them with the same name.
is it really worth doing that?.....
thankyou very much
Vinod
Even you learn 1%, Learn it with 100% confidence.
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Dec 27, 2007
Hi experts,
For defragmenation and reindexing they are using the below cursor, and now they have asked me to remove the cursor and schedule the job accordingly to do the same functionality, so what will be the other way we can do without cursor? can you plase let me know the solution?
DECLARE @Database VARCHAR(255)
DECLARE @Table VARCHAR(255)
DECLARE @cmd NVARCHAR(500)
DECLARE @fillfactor INT
SET @fillfactor = 90
DECLARE DatabaseCursor CURSOR FOR
SELECT database_name FROM dbadmin.dbo.tdbstatus WHERE status='y'
AND database_name NOT IN ('master','model','msdb','tempdb')
ORDER BY 1
OPEN DatabaseCursor
FETCH NEXT FROM DatabaseCursor INTO @Database
WHILE @@FETCH_STATUS = 0
BEGIN
SET @cmd = 'DECLARE TableCursor CURSOR FOR SELECT table_catalog + ''.'' + table_schema + ''.'' + table_name as tableName
FROM ' + @Database + '.INFORMATION_SCHEMA.TABLES WHERE table_type = ''BASE TABLE'''
-- create table cursor
EXEC (@cmd)
OPEN TableCursor
FETCH NEXT FROM TableCursor INTO @Table
WHILE @@FETCH_STATUS = 0
BEGIN
SET @cmd = 'ALTER INDEX ALL ON ' + @Table + ' REBUILD WITH (FILLFACTOR = ' + CONVERT(VARCHAR(3),@fillfactor) + ')'
EXEC (@cmd)
FETCH NEXT FROM TableCursor INTO @Table
END
CLOSE TableCursor
DEALLOCATE TableCursor
FETCH NEXT FROM DatabaseCursor INTO @Database
END
CLOSE DatabaseCursor
DEALLOCATE DatabaseCursor
Your help will be appreciated.
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Mar 24, 2005
In the Enterprise Manager of SQL Server 2000 I have set up a maintenance plan which rebuilds my indexes. I've stuided the documentation, and from what I've learned what happens behind the curtain is that several DBCC REINDEX commands are being issued.
Question:
If I have 20 tables and 40 indexes: Will SQL Server do the maintance plan in 1 single transaction, or will it divide the it up to eg. 20 or 40 transactions?
-h
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Nov 22, 2004
Hi
We are upgrading from sql 7 to 2000.During the upgrade process do we have to do a reindexing of all tables or will update statistics take care of that.
Or do we have to do both?
What is the difference between reindexing and update statistics.
Thanks
Madhukar Gole
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Dec 14, 2004
Hi All,
Just after some feedback on a scenario where we have full logging setup on one of the databases, and the transaction logs are backed up every 60min. At 0000-0100 the log jumps from being a few thousand k up to over 1.7gb.
I did some profiling for this time, and it appears that this jump is related to the reindexing of the indexes on the database.
Is this normal for the log file to jump in size so much? Or is this an indication of some other issue (potentially with the indexes)?
Is there any way that the reindexing can be excluded from the log files or is this a necessity?
Thanks in advance for your help.
Cheers
Troy
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Jul 23, 2005
Folks,I work on a system which is growing rapidly, with the number oftransactions we process growing on a daily basis. While this is goodnews or the business, maintenance is starting to become an issue as thedatabase is the backend for a website which cannot be down for alengthy period of time.While I do defrag the indexes, periodically the indexes do need to berebuilt. When this happens, the process locks pages and transactionsstart getting bounced out.Are their any third party utilities which will rebuild an indexwithout this locking occuring? Any help in pointing me in the rightdirection would be appreciated.
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Apr 30, 2007
Does someone know if doing a reindex on a clustered or non-clustered index cause the snapshot file to grow? In other words, is the data that makes up the snapshot copied from the source to the snapshot database? If a normal reindex is done on the underlying database, will it block users from acessing the snapshot? Any help would be appreciated.
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Oct 18, 2007
All,
I've got a medium sized database in a mirror configuration with witness. The database size is about 300gb and I would to reindex all of the tables in the database. My process would go something like this:
1) Backup principal
2) Break the mirror
3) Set the principal database to simple recovery mode
4) Perform the reindexing
5) Backup the principal and transfer that backup to the mirror
6) Restore the backup
7) Re-establish the mirror
Does anyone see any issues with the process itself?
Regards,
Ian
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Nov 3, 2005
Hello,
I'm looking for the query command that will go out to all the user Tables and will tell me what Indexes need to be reindexed.
We are having a problem with some of the tables and we don't know when our tables need to be reindexed other than when operations are stopped for our company.
Thanks,
Ron
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Jul 18, 2007
Hello. When reviewing the DBCC SHOWCONTIG immediately after reindexing all indexes on a database, I see the ExtentFragmentation has values like 50 to 70%... These are SQL 2005 tables with clustered PK's, no large varchars/blobs, and at least 100 pages in the index... The numbers related to PAGE fragmentation are ok after reindexing, but not the EXTENT fragmentation numbers.
I noticed the drive is in need of being defragged at the disk level. Is that a reason why reindexing doesn't fix the Extent frag numbers?? ANy other ideas on this? I can try defragging the DISK over the weekend, bringing the database offline then, but any other thougths on why the Extents show these high %'s? Is there any command to reset them and maybe that isn't happening? Like must I do update usage to get valid Extent frag #'s??
If there were MANY autogrows on the files, is that a different level of fragmentation? and how could all those small pieces of files be pulled back together? Thanks, Bruce
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Nov 15, 2007
We replicate a SQL2000 database (DataBaseA) to a SQL2000 database (DataBaseB) by using the Restore function and hasn't change its logical name but only the physical data path and file name. It is running fine for a year. We use the same way to migrate the DataBaseB to a new SQL2005 server with the Restore function and the daily operation is running perfect. However, when we do the Backup of DatabaseB in the SQL2005, it just prompt the error message
System.Data.SqlClient.SqlError: The backup of full-text catalog 'DataBaseA' is not permitted because it is not online. Check errorlog file for the reason that full-text catalog became offline and bring it online. Or BACKUP can be performed by using the FILEGROUP or FILE clauses to restrict the selection to include only online data. (Microsoft.SqlServer.Smo)
Please note we left the DataBaseA in the old SQL2000 server.
Please help on how we can delete the Full-text catalog from DatabaseB so we can do a backup
Many Thanks
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Oct 14, 2015
I have database on localhost and i want to show this data on my website. I want to create a database online and want to sync with Local Host. Can it be possible syncing data automatically after some interval?
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Oct 9, 2007
yes,I have an error, like 'The database file may be corrupted. Run the repair utility to check the database file. [ Database name = SDMMC Storage Cardwinpos_2005WINPOS2005.sdf ]' .I develope a program for Pocket Pcs and this program's database sometimes corrupt.what can i do?please help me
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Aug 18, 2005
I want to create a duplicate database in sql 2000 using asp.net from a webform
I created a database using CREATE DATABASE .......
But how to copy tables, views, stored procedures to newly created
database from old using asp.net from webform
Is there any another method to create a duplicate database with another name
from existing database on same server ?
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Sep 2, 2007
Greetings, I have just arrived back into the country (NZ) and back into ASP.NET.
I am having trouble with the following:An attempt to attach an auto-named database for file (file location).../Database.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.
It has only begun since i decided i wanted to use IIS, I realise VWD comes with its own localhost, but since it is only temporary, i wanted a permanent shortcut on my desktop to link to my intranet page.
Anyone have any ideas why i am getting the above error? have searched many places on the internet and not getting any closer.
Cheers ~ J
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Apr 9, 2008
I have a problem when i restore my .DAT_BAK file. I am getting error like "The backup set holds a backup of a database other than existing database. Restore Database is terminating abnormally".
I tried by using
RESTORE DATABASE <DATABASENAME>
FROM DISK = 'D:DATAMYTEST.DAT_BAK'
WITH MOVE 'VZAI_DATA' TO D:PROGRAM FILES..MSSQLTEST.MDF',
MOVE 'VZAI_LOG' TO D:PROGRAM FILES..MSSQLTEST.LDF',
REPLACE
And also i tried like
RESTORE DATABASE <DATABASENAME>
FROM DISK = 'D:DATAMYTEST.DAT_BAK'
WITH REPLACE
When i use like this,
RESTORE FILELISTONLY FROM DISK = 'D:DATAMYTEST.DAT_BAK'. I am able to get the output as LogicalName, PhysicalName, Type, FileGroupName, Size, etc.
Can i anyone please help me out?
Thanks in Advance,
Anand Rajagopal
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Oct 2, 2007
I am using SQL express and Visual web developer on windows Vista.
When I try to create a new database the following message appears.
CREATE DATABASE permission denied in database master (error 262)
I log on to my computer as an administrator.
Help appreciated
Prontonet
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Jan 14, 2008
Hi all,
From the http://msdn.microsoft.com/en-us/library/bb384469.aspx (Walkthrough: Creating Stored Procedures for the Northwind Customers Table, I copied the following sql code:
--UpdateSPforNWcustomersTable.sql--
USE NORTHWIND
GO
IF EXISTS (SELECT * FROM sysobjects WHERE name = 'SelectCustomers' AND user_name(uid) = 'dbo')
DROP PROCEDURE dbo.[SelectCustomers]
GO
CREATE PROCEDURE dbo.[SelectCustomers]
AS
SET NOCOUNT ON;
SELECT CustomerID, CompanyName, ContactName, ContactTitle, Address, City, Region, PostalCode, Country, Phone, Fax FROM dbo.Customers
GO
IF EXISTS (SELECT * FROM sysobjects WHERE name = 'InsertCustomers' AND user_name(uid) = 'dbo')
DROP PROCEDURE dbo.InsertCustomers
GO
CREATE PROCEDURE dbo.InsertCustomers
(
@CustomerID nchar(5),
@CompanyName nvarchar(40),
@ContactName nvarchar(30),
@ContactTitle nvarchar(30),
@Address nvarchar(60),
@City nvarchar(15),
@Region nvarchar(15),
@PostalCode nvarchar(10),
@Country nvarchar(15),
@Phone nvarchar(24),
@Fax nvarchar(24)
)
AS
SET NOCOUNT OFF;
INSERT INTO [dbo].[Customers] ([CustomerID], [CompanyName], [ContactName], [ContactTitle], [Address], [City], [Region], [PostalCode], [Country], [Phone], [Fax]) VALUES (@CustomerID, @CompanyName, @ContactName, @ContactTitle, @Address, @City, @Region, @PostalCode, @Country, @Phone, @Fax);
SELECT CustomerID, CompanyName, ContactName, ContactTitle, Address, City, Region, PostalCode, Country, Phone, Fax FROM Customers WHERE (CustomerID = @CustomerID)
GO
IF EXISTS (SELECT * FROM sysobjects WHERE name = 'UpdateCustomers' AND user_name(uid) = 'dbo')
DROP PROCEDURE dbo.UpdateCustomers
GO
CREATE PROCEDURE dbo.UpdateCustomers
(
@CustomerID nchar(5),
@CompanyName nvarchar(40),
@ContactName nvarchar(30),
@ContactTitle nvarchar(30),
@Address nvarchar(60),
@City nvarchar(15),
@Region nvarchar(15),
@PostalCode nvarchar(10),
@Country nvarchar(15),
@Phone nvarchar(24),
@Fax nvarchar(24),
@Original_CustomerID nchar(5)
)
AS
SET NOCOUNT OFF;
UPDATE [dbo].[Customers] SET [CustomerID] = @CustomerID, [CompanyName] = @CompanyName, [ContactName] = @ContactName, [ContactTitle] = @ContactTitle, [Address] = @Address, [City] = @City, [Region] = @Region, [PostalCode] = @PostalCode, [Country] = @Country, [Phone] = @Phone, [Fax] = @Fax WHERE (([CustomerID] = @Original_CustomerID));
SELECT CustomerID, CompanyName, ContactName, ContactTitle, Address, City, Region, PostalCode, Country, Phone, Fax FROM Customers WHERE (CustomerID = @CustomerID)
GO
====================================================================================
I executed the above code in my SQL Server Management Studio Express (SSMSE) and I got the following error messages:
Msg 911, Level 16, State 1, Line 1
Could not locate entry in sysdatabases for database 'NORTHWIND'. No entry found with that name.
Make sure that the name is entered correctly.
===============================================================================================================
I know I recreated the NORTHWIND Database from a different Database before and I did not do anything for the entry in sysdatabases. How can I change the entry in sysdatabases for database 'NORTHWIND' now? Please help and advise.
Thanks in advance,
Scott Chang
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Mar 27, 2007
hii want to copy one database table to onther database table using script?my database is ms-sql server 2000
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Jan 11, 2006
I recently added a new user to my database. Now I want to delete that user, but I keep getting the error above. What do I need to do to delete my recently added user?
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Sep 10, 2012
We have a SQL database that uses Active Directory with Windows Authentication. Can users that are members of the Active Directory group that has read/write access to the SQL database create ODBC connections to access the database directly and update the data? They dont have individual logins on the server. They are only members of the Active Directory group that has a login?
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Mar 8, 2015
I had to to relocate the database log file and I issued an Alter database command but by mistake I put a space in the file name as below. The space is at the beginning file name. Now I am unable get the database loaded to SQL Server. The database has 2 replications configured, so deleting and re-attaching the database means the replication needs to be re-configured. Is there an alternative way to issue a command to update the database FILENAME ? Not sure if this can be edited in master database (sys files).
ALTER DATABASE [User_DB]
MODIFY FILE (NAME = User_DB_log, FILENAME = 'I:SQLLogs User_DB_log.ldf')
GO
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Mar 31, 2007
I created the db with the attached script and I am able to access ituntil I reboot the server. I've tried enabling flag 1807 via the SQLserver service and the startup parameters of the instance. In allcases the database always come up suspect after a reboot. There wasone instance where I was able to recover, but I am not sure how thathappened.Does anyone have an idea of how I can reboot the server without thedatabase becomming suspect?USE MASTERGODBCC TRACEON(1807)GO--DBCC TRACEOFF(1807)--DBCC TRACESTATUS(1807)GOCREATE DATABASE ReadyNAS ON( NAME = ReadyNAS_Data,FILENAME = '\NAS1NASDiskSQL ServerReadyNASReadyNAS_Data.mdf',SIZE = 100MB,MAXSIZE = 20GB,FILEGROWTH = 20MB)LOG ON ( NAME = ReadyNAS_Log,FILENAME = '\NAS1NASDiskSQL ServerReadyNASReadyNAS_Log.ldf',SIZE = 20MB,MAXSIZE = 100MB,FILEGROWTH = 10MB)
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Nov 5, 2007
Hi all,
I downloaded and ran AdventureWorks.msi into my SQL Server Management Studio Express (SSMSE) one year ago.But I did not know how to attach it to my SSMSE then. Last week, I deleted it from the "Add or Remove" of Control Panel and I downloaded the new AdventureWork.msi and installed it my SSMSE. Today, I tried to use the Database Explorer of VB 2005 Express for the first Stored Procedure programming. I clicked on AdventureWorks.mdf and I got the following error: One or more files do not match the primary of the database. If you are attempting to attach a database, retry the operation with the correct files. If this is an existing database, the file may be corrupt and should be restored from a backup. Cannot open user default database. Login failed. Login failed for user 'CENADe1enxshc'. Log file 'C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLDataAdventureWorks_Data_log.ldf' does not match the primary file. It may be from a different database of the log may have been rebuilt previously. Please help and advise me how to correct this problem.
Thanks,
Scott Chang
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