How To Recover SQL Server Database From Suspect Status
May 24, 2007
One of the database in our SQL Server 2000 environment is in the suspect status. We need to bring it back to the normal status.
The problem occurred because the disk on which the data file and log file for this database were placed ran out of space.
Pls note other databases in the same server are working fine.
Later on more space was made available on this disk. We tried the following options but with no success.
1. Reset the status of database and restarted the SQL Server. After restarting the SQL Server, the database once again was showing the suspect status.
2. Used the same data and log file in another SQL Server and attached with the database in this another SQL Server.
3. Tried dbcc chkdb with repair_allow_data_loss.
Since the database is in suspect status, we are neither able to export the data nor able to back up the database.
Please suggest some options to recover the database from the suspect status. Also it would be great if we can get the commands, scripts to find if the data/log file is corrupt and a way to correct it (even with data loss is fine).
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Apr 29, 2008
Hi
I want to suspect database
stop server first
I try to rename C:Program Files (x86)Microsoft SQL ServerMSSQL.1MSSQLDatamsdbdata.mdf to msdbdata.sav
and then start the server
use command to check:
SELECT status & 256 FROM master.dbo.sysdatabases WHERE name = database_name
if the result is 256,it means the msdb is suspect,but the result is 0,it same as the normal status
do you know how to set database suspect with this way, or do you know other way to suspect databse.
absolutely,I could re-back my server noraml with your way
Thanks
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Apr 24, 2015
As I know the database should be restored from backup and logs reapplied. That’s the first and generally recommended approach any time a DB is suspect, whether it’s from log or data file corruption.But if I have no backups then we follow below steps ( after Googling I found these steps on most of the websites ):
1.EXEC sp_resetstatus ‘yourDBname’;
2.ALTER DATABASE yourDBname SET EMERGENCY
3.DBCC checkdb(’yourDBname’)
4.ALTER DATABASE yourDBname SET SINGLE_USER WITH ROLLBACK IMMEDIATE
5.DBCC CheckDB (’yourDBname’, REPAIR_ALLOW_DATA_LOSS)
6.ALTER DATABASE yourDBname SET MULTI_USER
Now my question is,
1. If after executing DBCC CHECKDB at 3rd step, it shows inconsistency.Then I will execute SET SINGLE USER WITH ROLLBACK & if after executing DBCC CHECKDB at 3rd step, no errors found. Then what will be the steps?
2. When we execute DBCC CHECKDB (' DBNAME ', REPAIR_ALLOW_DATA_LOSS) how can we recover lost data during process.As far as I know some data will loss and if it will happen then business will get suffered.
3. Why run DBCC CHECKDB() WITH REPAIR_ALLOW_DATA_LOSS if there are no consistency errors in the database?
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Jan 10, 2005
Hi,
I've my database, testdb, ended up in Suspect state. The SQL log shows " I/O error 38(Reached the end of the file.) detected during read at offset xxxxxxxxxx in file '<path> estdb_Data.MDF'" during recovery. I do not have backup to restore the database from. So to run DBCC CHECKDB, I tried to put the database in emergency(bypass recovery) mode using
update sysdatabases set status = 32768 where name = 'testdb'
DBCC CHECKDB showed some allocation and consistency errors and suggested "repair_allow_data_loss" as minimum repair level.
Now to run
DBCC CHECKDB('testdb', repair_allow_data_loss)
I've to put database in SINGLE USER mode. For that I started SQL server by command
sqlservr.exe -c -m
Now when I try to run DBCC CHECKDB with repair option it says "Attempt to BEGIN TRANSACTION in database 'testdb' failed because database is in BYPASS RECOVERY mode."
So it seems I need to change the status of database such that it will allow me to repair it. If I try to reset the status, the database again goes in Suspect state and it seems DBCC commands don't run on database in Suspect state. Does anybody know how to recover the database in this state? Is there any other way to repair it?
Thanks in advance,
Yojana
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Nov 17, 2007
I have the MS SQL2000 database failed to recover at computer restart. Now the database is marked suspect. How can I manage to recover the data?
Thank you.
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Feb 14, 2008
Hello,
A hard drive crashed on one of our MS SQL Server 2005 and brought the server down
with it. We had replaced the hard drive and rebuilt the RAID 5 container and got the server rebooted.
However, one of the databases got corrupted after that. THis is the error logs snippet:
===============
,An error occurred during recovery<c/> preventing the database 'survey_p0765392' (database ID 439) from restarting. Diagnose the recovery errors and fix them<c/> or restore from a known good backup. If errors are not corrected or expected<c/> contact Technical Support.,
===============
We have backup which is 2 days old, and restoring from the backup would result in us losing a lot of records that we
have created since then. Is there any way to recover the data from this database? How canI repair it? Please advice. Thanks
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Jun 18, 2007
I asked this question before but never received a decent answer. When a restore fails, what are the steps to re-start the restore? This should be a very common issue and for the life of me I have been unable to find it in BOL or the MS site! Please let me in on the secret!!
Thanks
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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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Feb 1, 2008
Hi,
By mistake i've damaged my .mdf file and i have no backup on this database . However i have the transaction log intact and an older version of the database .
Is it possible to recover the database using the transaction log? How can it be done?
Thanks to anyone who can help me.
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Jan 24, 2004
I can recover all type of ms sql server database losing.please contact me at cn9526@163.net
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Apr 25, 2007
hi all,
one of my sql database went in suspect mode can any one advice why it has happened is it the problem with sql server . This has happend for the second time in 4 months .
thanks and regards
jk
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Feb 12, 2008
hi
Can any body provide me any idea that how to recover database data if i have deleted that database
Bye......
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Jun 20, 2007
Hi all. A few days ago i installed mcafee total protection 2007 and that disabled my internet connection totally!! I couldn't fix it so i had to uninstall it. After uninstalling mcafee total protection 2007 still i couldn't join Internet!!
So i got mad and went and made repair installation of windows xp pro. After repair installation i couldn't activate it since Internet connection was still not working!! So i went and installed another copy of xp pro on different folder and named it WINDOWS (old one was WINDOWS2).Thanks god now i could join Internet but all my shortcuts and menu items are not visible.
Unfortunately I can't even start sql server 2000 either!! could any one tell me what should i do in order to get access to all database tables and data that i had in sql server and make a back up. I didn't install any new sql server yet. I be happy if an expert tell me what should i do. The installation folder of old windows(WINDOWS2) is still available along with sql server installation folder.Thank and looking forward for reply.
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Jun 21, 2007
I have managed to attach a database to my new instance of SQL Server 2005. The database orignally went into suspect mode on SQL Server v8.0. I have managed to get it into emergency mode but cannot see any tables. DBCC CHECKDB etc do not work. I get the error saying to upgrade the database to the newest version.
Any ideas? Thanks in advance!
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Sep 14, 2007
Hello,
Im using the same DB used in northwindoledb example, i need a similar app but in C#, not C++, so i use this DB and make a form for Pocket PC 2003 SE Emulator in Vista (device application) with visual studio 2005, i use a function to recover the image and display in a PictureBox but when this image create a BitMap give me an error "Value does not fall within the expected range.", i seek a lot in internet and don't find a solution, the function is:
public static Image Bytes2Image(byte[] bytes)
{
if (bytes == null) return null;
MemoryStream ms = new MemoryStream(bytes,0,bytes.Length );
Bitmap bm = null;
ms.Read(bytes, 0, bytes.Length);
bm = new Bitmap(ms);
return bm;
}
If someone can help me i will appreciatte
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Oct 11, 2006
Hello,
I have a database that resides in SQL Server 7.0 that I can attach in Microsoft's SQL Server Management Studio Express and I can see all the tables from the database in that program.
My problem is that when ever I re open SQL Server Enterprise manager, the database that I attached to SSME, shows up as Database(Suspect). Now I am unable to view my tables in that database. Can anyone tell me what causes this, and how I can resolve that issue?
I need to have my sql server database, and sql server express edition database present in SSME because I am doing an import of data from SQL Server 7.0 to SQL server express.
Also, if there is another easier way to import data from SQL Server 7.0 to SQL Express edition, I would like to know...
Thanks in advance.
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Jun 3, 2015
SQL server. By-mistake I updated values of a column in a database hosted online, is there any way undo the transaction. I didn't created any backup of the database. I read that still it can be recoverd through the .ldf (log file) but unable to access it. Is there anyway to get access of the Log file or is there any way to recover the data.
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Oct 7, 2015
I know that there was huge tempdb usage and may be the disk was full but SQL server is not suppose to restart in this case.What could be the reason behind this? SQL server restarted and is currently up and running.We are using SQL server 2008 SP3
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Sep 23, 2011
My Client Accidently Deleted Somes Rows From Database Now. Now We are Struggling For Almost 2 Days To Get Them Backup. I Even Checked LDF File From Notepad It Have Those Rows But Not Formatted. (Some Similar Text From Some Column Which Got Deleted.)And The Database has no Backup which i Go to Task -> Restore...Server is Running on Sql Server 2008.
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Jan 14, 2015
I Want to test for Automatic switch between primary and secondary.
How do i do it ?
or
I need this for some purpose : How to set suspect mode for a database ?
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Jun 3, 2015
SQL server, by-mistake I updated values of a column in a database hosted online, is there any way undo the transaction. I didn't created any backup of the database. I read that still it can be recovered through the .ldf (log file) but unable to access it. Is there anyway to get access of the Log file or is there any way to recover the data.
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Apr 17, 2015
I need to recover some data in a table but i'm not 100% sure the right way to do this safely.
I'll need to query the two tables to compare the before and after but how do i go about restoring/attaching the backup database to SQL without causing conflicts?
If I restore, I assume this would just overwrite which is obviously the worst thing that can happen. if i attach the backup, how does this affect the current live DB? how do i make sure that it's not getting accessed and mistaken for the live DB?
The SQL server is 2008 R2 running as a VM.
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Jan 22, 2015
I have a matrix table. These status can be changed by the user and I want to capture each change in database with out updating the earlier status
Pending
Activated
In PROGRESS
Submitted
Completed
Pending can be changed to submitted or completed. For one form there can be different status at different time. And each status must be saved in the database table. How can I design a table...
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Jun 13, 2007
My database is marked as suspectI am using SQL Server 2000,I ran the command sp_resetstatus it executes succesfully. but still the database is in suspect state.can any one tell me how i recover my data.thanks in advance
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Nov 23, 1999
Im running SQL 7.0 with a large heavily used 4Gb database. After a while the database is marked suspect. What can be the cause to this ? Please email me and I can send you additional information about hardware and the system.
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Dec 9, 1999
Hi everyone,
I really need help on this, one of my databases is marked suspect. I did tried to execute this command below (scripts):
use master
go
sp_configure 'allow updates',1
go
reconfigure with override
go
update sysdatabases set status=4 where name='security'
go
sp_configure 'allow updates',0
go
reconfigure with override
go
and it release the suspect from the 'Security' database, but it Won't let me access the table,data or nothing. The worse thing is when I stop & start the server again, the database marked suspect again.
Could anybody out the help me on this. Thank in advance, Vu
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Apr 8, 1999
I am using SQL server 6.5 sp3 and NT 4.0 sp4.
My SMS database has been marked suspect.
I do not have a backup.
I have read several articles about trying to us sp_resetstatus.
I can not find this sp on my server.
When I try the following:
UPDATE master..sysdatabases status=256 WHERE name = ('sms')
I get the following back:
Ad-hoc updates to system catalog not enabled. System Adminstrator must recongifure system to allow this.
I have searched Microsoft KB and everywhere I can think of. If anyone can help I would really appreciate it.
I even tried reapplying sp3 and rebooting...this did not help either.
Can someone please tell me how to change the status back to normal.....I think this is a it will take..
thanks in advance,
nathan
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Mar 5, 1999
I have the original dat files ( 2 seperate log / data) of a database. I have created new devices (same size as originals) and a new database. I replace the new dat files with the originals and the database always comes up as a suspect. I have done this with the other 7 databases on my server and none have similar problems. This database was created different then others using new database and new devices routine rather than creating the devices first. Any Ideas?
Thanks in Advance.
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Nov 18, 1998
Hi... I have this problem with my database (dunno how this thing happen). Today, 2 of my databases have been marked as 'suspect' (grey color in SQL Enterprise Manager). In ISQL, when I try 2 connect 2 the database (use), the message '
Msg 926, Level 14, State 1
Database 'MYUAT' cannot be opened - it has been marked SUSPECT by recovery. The SA can drop the database with DBCC.'
appeared.
Don't understand Y this occurred...
Thanks in advance for any help...
~Cheers~
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Jun 15, 2004
my database is in suspect,how to correct it?
thx in adance..
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Sep 9, 2004
Hi all,
We recently had some kind of error on one of the server's hard drives. The network guys, reinintialized (or something) and were able to bring everything back. However, two of my databases now is "Suspect" and can't be used. Both the MDF & LDF exist, and there are no indications of actual data loss. What can I do with a "suspect" database ? SQL 2K
What should I do to recover these two databases?
Thank you for all your suggestions.
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Sep 29, 2004
I could not open my database.It says its Suspect and could not open and not displaying any of the objects
What should be the reason and what is steps i can do make it up and running.
Thanks
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Oct 3, 2005
:mad:
One of my prodn databases went into suspect mode today..
I was able to recover it.
The tech support guyz had rebooted the server couple of times
(out of ignorance) cos they thought if wud fix it.
I lost the sql errpor log file which had the error details as to why db when into suspect....so my questions are..
1. Probable reasons why db when into suspect mode.
2. Any other way to find out about the error details.
3. When I ran dbcc checkdb with repair_rebuild option
for some tables it gave error
"Parent node for page (1:13075) was not encountered"
How can i resolve the consistency errors.
Is DBCC CHECKTABLE sufficient.???
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