Database Corrupted?
Jan 25, 2005
Hi all,
Had a disk problem here, and all apps connected to our database hung. Nothing was responding, rebooted, and mssqlserver hangs on startup.
If i move the mdf and ldf files of the database in question to another folder, mssqlserver starts up ok, with the db marked as suspect.
It would seem the the mdf and ldf are corrupted.
I am restoring a backup from yesterday, but this will take hours.
Any suggestions trying to recover it as it sits?
Thanks in advance for any ideas.
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Dec 15, 2005
I have a SQL 2000 database whose MDF is approx. 105 GB. Everything has been working fine for months until this past weekend when the database server dropped offline. I restarted the services and SQL server looks to have started up okay. However, trying to access it via Enterprise Manager causes EM to hang. Checking the Windows event log, there are a whole series of messages stating ...
3455 : Analysis of database 'ptportal' (7) is XX% complete (approximately 61 more seconds)
This 'analysis' ran for over 12 hours ... I have never seen this run before, much less this long. Now, there are a new series of messages stating ...
3450 : Recovery of database 'ptportal' (7) is XX% complete (approximately 56526 more seconds) (Phase 2 of 3).
This 'recovery' has been running for 9 hours now. Does anybody have any idea what has happened here or what is going on? My guess is that this database has been corrupted and SQL Server is trying to do a repair? Anybody know how long this usually takes and what the success liklihood would be?
Thanks
-- Jeff Chastain
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Oct 4, 2007
Hi,
I have a database corrupted showing on the Object Explorer the name of the database and showing near (6.5). Deleted not accepted any other function not allow. Is there any way to take off from the Object Explorer?
Best regards
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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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Mar 20, 2000
I am backing up SQL 6.5 DB using Backup Exec 7.2 on NT 4.0 server SP4 with SQL server agent. The backup job ends in Failed status and a warning that DBname is corrupt. I then try to run DBCC Checkdb, newalloc, and checkcatalog commands to repair the DB. No further ahead yet. Are there any other commands that I can perform on the DB so that the corruption can be repaired, or verified there indeed is corruption of DB?
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Nov 10, 2007
hi,
i developed an application which running on PDAs.i am using sqlserver ce database.my database file sometimes corrupted,why sqlce databases are corrupted and what can i do not corrupted.i can repair my database file when it corrupted but my customers not understand when database file was corrupted,so they think that program doesnot work.
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Aug 13, 2006
Hi, my 'model' database corrupted and my SQL Server 2005 Express can't be started.
I believe I have the SAME problem as his:
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=455524&SiteID=1
but when I try the command start sqlservr.exe -c -T3608, an error message appeared:
"Your SQL Server installation is either corrupt of has been tampered
with (Error getting instance ID from name). Please uninstal then re-run
setup to correct this problem"
Well, the problem is that I have an ActiveBPEL database inside, and I really need a way without reinstalling it.
Any solution??
Thanks,
Edwin
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Jun 8, 1999
Hi Everyone,
I am a newbie to SQL Server Admin. Today when I ran Dbcc newalloc on Model it is showing
corruption on syobjects with a 2525 error. I am not sure how to fix this problem? Since
this is a critical payroll application server, I need to solve it at the earliest.
If anybody has faced this problem earlier or knows how to solve, please respond to the following
address: vsrikanth@ameren.com
Thanx for all responses
Srikanth
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Dec 28, 2006
The following list of actions leads to a corrupt database on SQL Server 2005.
Create a database snapshot
Drop a table in the database
Backup the database
Restore from backup
Revert to the snapshot
I'm not entirely surprised that it results in a corruption, what is surprising is that I can revert from a snapshot after restoring. There needs to be some kind of check to prevent reverting to a snapshot in a case like this. Until SQL Server prevents you from doing it, I'd recommend a best practice is to delete all snapshots before you restore a database so that you cannot do this by accident.
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Nov 28, 2014
I run MSDE on a Windows XP Server and my database was marked as "suspect" by Enterprise Manager and its icon become gray. I detach that database and try to re-attach it but there is an error as the following:
Error 3624:
Location : page.cpp:2801
Expression: rowLength >= offset + deleteLenght
SPID : 56
Precess ID:1612
After that, I uninstall the MSDE and re-install new MSDE SP4 and try to re-attach the database file again and there is still an error. Is there anyway i can recover the data from that database?
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Apr 16, 2015
We have repartioned a server (create a larger C-drive/system partition). It's about Windows Server 2003. Before repartioning SP2 was not installed. After repartioning checkdisk started automatically (as normal after using a disk partitioning tool). Checkdisk did some interesting and bad things with my files: changing file permissions and make some files corrupt, how I don't know. Something to do with SP2 not installed and the NTFS filesystem. After this action I have a corrupted SQL database. Tried to repair with the DBCC CHECKDB repair commands, but fail. Error in event viewer:
Error: 823, Severity: 24, State: 2
I/O error (bad page ID) detected during read at offset 0x0000003bdc4000 in file 'D:program filesMicrosoft SQL ServerMSSQLData352.MDF'.
I also still have NTFS errors in my event viewer. What to do? How can I repair the database? Only running checkdisk again? (and will this work?) Than all file security will be reset to Administrators.
Other ways to rebuild my database? (tools???) Unfortunally there isn't a good backup available due to a lack of good configuration of the backup software.
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Mar 29, 2007
Let me start off by saying that under normal circumstance I would just restore from the last good backup. However in this case it appears as though the last good backup was sometime last August ... arg! After much yelling at the person responsible I've been attempting to get my blood pressure below 200 and see what data is recoverable.
First off, this was a RAID5 system that failed 1 drive. Secondly, before we got someone in there to replace said drive it failed a second drive and the system went down. We managed to massage the system back online but it appears that there is some corruption as a result which is no surprise.
I've done DB repairs in the past and it hasn't been too bad, but this time it is looking a little gnarly.
I've kicked everyone off the server and tried starting SQLServer several different ways.
I tried starting the service normally and then flagging the bad DB into single user mode with "ALTER DATABASE foo SET SINGLE_USER". I then did a select * from sysdatabases to make sure it took, which it did. I also tried starting the whole SQLServer in single user mode from the command line, "SQLServr -m".
I can run "DBCC CHECKDB('foo')" and I get a long ugly list of allocation errors. I posted it to a link as the 1349 lines returned is a little long:
http://chrisnet.net/sqlbad/dbcc_checkdb.txt
But when I attempt to bite the bullet and destroy data in an attempt to put things back together with:
"DBCC CHECKDB('foo', REPAIR_ALLOW_DATA_LOSS) WITH ALL_ERRORMSGS"
I get:
Server: Msg 7919, Level 16, State 2, Line 1
Repair statement not processed. Database needs to be in single user mode.
DBCC execution completed. If DBCC printed error messages, contact your system administrator.
But yet the database is in single user mode, according to everything I check check on. Is this just SQL's way of telling me the corruption is too severe to be repaired? No output is displayed in the shell cmd window like it is for a successful DBCC either (when running sqlservr -m).
Ideas? Or do I put a bullet through it's brain?
-Chris
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Jan 18, 2011
I was trying to update an SSAS database on a test server and got the following error when trying to deploy from Visual Stuido. I get a similar error in SMS. I tried to delete the database before deploying but I get an error when trying to delete. I rebooted the server.
(SQL Server 2005 R2, Windows Server 2008R2.)
Error 1 File system error: The following file is corrupted: Physical file:
?D:Program FilesMicrosoft SQL ServerMSSQL.2OLAPDataHeidtman Sales Cube.0.dbDim Age.0.dim5.Dim Age.Dim Age.dstore. Logical file . Errors in the metadata manager. An error occurred when loading the Age dimension, from the file, '?D:Program FilesMicrosoft SQL ServerMSSQL.2OLAPDataHeidtman Sales Cube.0.dbDim Age.5.dim.xml'. Errors in the metadata manager. An error occurred when loading the Heidtman DW cube, from the file, '?D:Program FilesMicrosoft SQL ServerMSSQL.2OLAPDataHeidtman Sales Cube.0.dbHeidtman DW.7.cub.xml'. 0 0
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May 9, 2007
A friend of mine called and said that his database was suspect and he detached it and was unable to attach it. The SQL Server Version is 2000 with the latest service packs installed. When I checked it the database (MDF) size was 1MB and the LDF size was 3.8 GB. I was not able to attach the two together and I was not able to attach the database using sp_attach_single_file_db. I did find an old backup of his database and attached that so he can work off of it but it is 1 yr old and he needs recent data. Since the MDF seemed to be blank we cant do much with that, but there seems to be data in the LDF. Is it possible to extract any data from the LDF file?
Sunny
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Jun 3, 2015
We have database when trying to make read only throwing below error: with stack dump
Location: recovery.cpp:4517
Expression: m_recoveryUnit->IsIntendedUpdateable ()
SPID: 51
Process ID: 6448
Msg 926, Level 14, State 1, Line 1
Database 'XXXX' cannot be opened. It has been marked SUSPECT by recovery.
See the SQL Server errorlog for more information.
Msg 5069, Level 16, State 1, Line 1
ALTER DATABASE statement failed.
Msg 3624, Level 20, State 1, Line 1
A system assertion check has failed. Check the SQL Server error log for details. Typically, an assertion failure is caused by a software bug or data corruption. To check for database corruption, consider running DBCC CHECKDB. If you agreed to send dumps to Microsoft during setup, a mini dump will be sent to Microsoft. An update might be available from Microsoft in the latest Service Pack or in a QFE from Technical Support.
Msg 3313, Level 21, State 2, Line 1
During redoing of a logged operation in database 'XXXX', an error occurred at log record ID (0:0:0). Typically, the specific failure is previously logged as an error in the Windows Event Log service. Restore the database from a full backup, or repair the database.
Msg 3414, Level 21, State 1, Line 1
An error occurred during recovery, preventing the database 'XXXX' (database ID 7) 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.
Investigation DONE:
- DBcc checkdb shown Clean
- database is online and able to access
-Detached database and attached with rebuild log, still could not bring database read_only
SQL version : SQL server 2008 SP4.
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Jul 23, 2005
Hello,I am trying to recover a SQL Server 7 database from another hard diskdrive that has a corrupted Windows 2000 Advanced Server installation. Iam not able to repair the corrupted Windows 2000 Advanced Serverinstallation but the file system is intact. I have installed a new copyof SQL Server 7 onto a new hard disk and have used the sp_attach_dbsystem stored procedure to attach the database from the old hard driveinto the new installation of SQL Server 7 on the new hard drive. Thedatabase shows up in the Enterprise Manager View and all the data andstructure are there, but when I try to run a Web site that uses ODBCconnections to the database I get the following error:ODBC Error Code = 08001 (Unable to connect to data source)[Microsoft][ODBC SQL Server Driver][Named Pipes]Specified SQL servernot found.I have double-checked that all the NTFS permissions, ODBC DSNs, and WebServer settings are correct and when I run the SQL Server ODBC drivertest at the completion of each ODBC DSN setup, it is successfull.1) Why am I getting this ODBC error?2) What steps have I missed in the recovery process?3) If I have done something wrong recovering my database, can I stillrecover it since I still have: a) The old master database file and logfile; b) The old database (non-master) file and log file; c)A backed-up(Enterprise Manager -> Right Click A Database -> All Tasks -> BackupDatabase) copy of the old database (non-master) file; ?My System Specifications:-Windows 2000 Advanced Server-SQL Server 7-IIS 5.0-Cold Fusion Server 4.5 Professional Full EditionThanks For Your Time,Nathan
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Sep 17, 2015
Pages on a full recovery model database corrupted, need to ensure data loss is minimal for restore operation am thinking about restoring the latest full backup.
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Jun 12, 2007
How to repair a corrupted OLAP database?
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Jul 31, 2007
Hi Everyone,
when i am trying to attach a 'xxx.mdf' file it is showing message 'xxx.mdf' is not a primary database file.
Please suggest me what could be the reasons and what are the possible ways to recover my database.
I have lot of important data in the database.
Thanks and Regards,
Shashidhar
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Jun 27, 2007
how can i attach my database without the ndf file, i still have the mdf and ldf. my ndf file contains only 2 tables which are not that very impt. unfortunately my ndf was corrupted and my backup files was deleted when the network admin formatted the harddisk where the backups were stored.. is it possible? kindly help..
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Sep 16, 1999
Hi,
I have a question on sqlserver 6.5 with sp5a.
I execute a query like the following
select * from eps_analysis_cm (INDEX = index2)
where ....
the query gets 32 rows.
If I use another index
select * from eps_analysis_cm (INDEX = index1)
where ....
the query gets 0 rows.
Are my indexes corrupted ?
Note: running DBCC CHECKDB I get no error messages
Thanks in advance
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Nov 14, 2007
We have one database of 5 GB of which when we take the backup and restore in another location, it says "Device Activation Error. The Physical file name e:databaseike_log.ldf may be incorrect".
The database has more than one log file.
Now when we use another procedure to create new database and stop the sql, then replace the old mdf file and REBUILDLOG. (Ie dbcc rebuildlog(nike,1,0)). It says incorrect DBCC Statment.
Pl. suggest us what to do?
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Aug 27, 2001
SQL Server 6.5.
Hi!
When I try to create PK, Clustered index on the column in the table I have got error message: 1105 Couldn't not allocate space for object table1......
But it is a big amount of free space in the database. And actually I can create any indexes, exsept clustered with no problem.
DBCC CHECKALLOCK for this table shows: extent not ih the segment.
Does it mean the table structure is corupted? What Can I do to resolve the problem?
Thank you,
Elena.
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Jun 7, 2001
Hi, Folks !
What happens with all jobs after rebuilding master db if it got corrupted. Will they be working correctly ? If no, then why ?
Thanx in advance,
serg
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Apr 5, 2007
Hi..!
Is it possible to recover data from corrupted log backup ?
Suppose we have 10 log files and 8th is corrupted then how can we recover database.
I am not facing such problem right now, but it's a question raised in my mind.
I would like to have your help, suggestions & comments. :rolleyes:
Thanks...
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Aug 2, 2007
Hi Everyone,
When I am trying to restore the backup it is giving an error message "An internal consistency error occurred. Contact Technical Support for assistance".
Please suggest me on this issue.
Is there any way to restore the backup or recover the backup.
Thanks,
Shashidhar
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Mar 19, 2007
this may well be the wrong place for my post, if so please move it.
I have a variety of boxes with SQL tools installed on them. For some reason last week several of them seem to have gone a bit squif.
Server 1. Enterprise manager fails to run, giving message MMC could not create the snap-in. QA runs fine.
Server 2. Load EM click on a database and try Tools --> QA it comes back with File Not Found. Add isqlw as an external tool and you can run that ok, but still File Not found on the QA tab.
I know its not data corruption, but I hope someone can give me a clue on this!
Cheers!
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Aug 20, 2007
Hi ALL,
My sql server is not starting becasue master db got corrupted.
I have tried to rebuild the master db with rebuild utility.Now the process of rebuilding taken 6 hours but still the process of rebuild master is going on.
Can any body faced this problem why it is not rebuilding the simple master database.
Thanks you.
BPG
EDIT by tkizer: moved to Data Corruption Issues forum
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Jul 23, 2005
Hello,I have a SS2K (SP3) that is appending very wierd looking error messagesto the SQL Server Log (Current). The messages are not formatted asother log entries. The messages suggest some kinda dump information.The messages have the following characteristics:Date Information is invalidSource information is invalidMessage information is strangeThe following is a message that appear in my current SQL Server LogDATE:78008454SOURCE: Module(MSVCRT+Message (_endthread+000000C1)There are many messages like this in the log.Is this serious?Thanks - Covi
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Jul 20, 2005
Hey Hey everyone. It's me again asking for help.I have an NT sp6 box with SQL 7. It seems the password for SA hasbeen corrupted, so it won't allow me to log in to it.As an NT admin, is there anyway to reset the SA password?Or, can I create another SA account in SQL 7?Can't find anything in Microsoft because..... SQL7 is not longersupported.Thanks in advance for any help.Jinev
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Jul 20, 2005
Need to recover from a corrupted log file. The database in EnterpriseManager shows the database as corrupt.Using sp_Attach_db produces a corrupt log message.Any way to recover the data?Thanks
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Nov 1, 2007
hello,
i am using sql server ce 2.0 on windows ce 4.2.sometimes my sdf file gets corrupted but i cant understand why?i know how this file repair.but for me it is not a solution.please somebody help me!
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Dec 1, 2006
Hi:
I try to run VB2005 Sample101, "Using Datagridvies" with SQL Express,
Here is what I got !"
"One or more files do not match the primary file 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 corrupted and should be restored from a
back up.
Cannot open use default database. Login failed.
Login failed for use 'XXXXXXXXXXXAdministrator"
Lof File 'C:Program FilesMicrosoft SQL ServerMSSQL.1DataAdventureWorks_Data_Log.idl' does not match the primary file. It may be from a different database or the log
may have been rebuilt previously."
Then I re attached the Database again. Still the Same problem.
I try other sample that used Northwin and Pubs (SQL2000 ) and attached to
SQLExpress, Well I suffered the SAME PROBLEM.
WHY, Please Help
Thanks
Simon
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