Database Corrupted, Need Help Recovering Data From LDF File
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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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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Nov 25, 1998
Hi,
Bit of a panic here.. Someone accidentally deleted a database device (and
consequentially the associated databases) from MS Sequel 6.5. I don't have a
backup dump of the databases.
Does anyone know how I restore the device? I have the DAT file and I can
see the data in it if I use a text editor.
Thanks
Jonathan
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Sep 23, 2007
Hi
I am in a trouble without doing any mistake. I restarted while in parallely my sql server was restarting i.e I opened a management studio.
When it booted up next time. I see that my database is gone. Though it is showed up in the server but has no node below it.
I then checked the mdf files and ldf files and found mdf file to be of 0 KB and ldf file is of 1.73 GB. My database was in full recovery mode but i did not take any database backup.
Here ais the entry from my SQL server log:
The operating system returned error 38(Reached the end of the file.) to SQL Server during a read at offset 0000000000000000 in file 'C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLDATAHello.mdf'. Additional messages in the SQL Server error log and system event log may provide more detail. This is a severe system-level error condition that threatens database integrity and must be corrected immediately. Complete a full database consistency check (DBCC CHECKDB). This error can be caused by many factors; for more information, see SQL Server Books Online.
I wonder if now there is a case to recover my database..Can I restore/recover the database from .ldf file as it was in full recovery model?Any help i shighly appreciated.
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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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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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Jul 21, 2014
our sql server databases are on a window cluster server.how to correct this issue or why would this happen? FILESTREAM data container 'M:TessituraDB DataDocuments' is corrupted. Database cannot recover.
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Jun 3, 2015
We have database when trying to make read only throwing below error: with stack dump
Location:Â Â Â Â Â Â Â Â Â Â Â Â Â recovery.cpp:4517
Expression:Â Â Â Â Â Â Â Â m_recoveryUnit->IsIntendedUpdateable ()
SPID:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 51
Process ID:Â Â Â Â Â Â Â Â Â 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 CleanÂ
- 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.Â
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Apr 30, 2007
Hi,
I am working on SQL Server Business Intelligence Development Studio - 2005. While working on the same, the studio got closed automatically and I was not able to save my existing file.
When I try to open the last saved file, it is thowing the following error:
Deserialization failed: The element 'QueryParameter' in namespace 'http://schemas.microsoft.com/sqlserver/reporting/2005/01/reportdefinition' has incomplete content. List of possible elements expected: 'http://schemas.microsoft.com/sqlserver/reporting/2005/01/reportdefinition:Value ##other:*'. Line 277, position 12.
EDIT CODE
Now I am not able to open the file. Please let me know how can I recover the lost file.
Regards
Syed
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Aug 17, 2006
I saw the other thread that is related, but let me give you our circumstances. A drive failed and that drive had the SQL installation and the *.ldf files on it. The MDF files were unscathed.
The drive has been rebuilt and I have reinstalled SQL 2000 SP3A on there (that is what was there before). I have tried attaching the MDF through the GUI and letting it create the log for me. This failed.
I tried sp_attach_single_file_db, but this failed since the db was never dettached.
I tried creating the db again, dettaching it, copying the old (good) MDF file over the newly created one and then attaching (using multiple attach approaches). It knows that the log file and mdf are not matched and won't let me do the attach.
I also found DBCC REBUILD_LOG, but the article in SQL Mag supposes that your instance is still in working order and that there is an entry for the db in sysdatabases. Such is not true in my case.
Can you help? We are trying to get old backup tapes shipped to the site, looking up our Gold Partner contact info, etc., but in the meantime, I am trying to get the data restored even if we lose some transactions.
Thanks for any help!
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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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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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Mar 16, 2006
ok..my friend sent me a video via file transfer, but when i tried to view it, and open it up with windows movie maker (that is the program she made the video on) it said the file was corrupted. is there any way i can fix the corrupted file? or any other program i can view it on? windows media player also declares it corrupted.
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Apr 3, 2008
Hi This is chetan jain sql server DBA.
I came accross a probplem while synchronising production with DR in logshipping.
logshipping was stopped and the message was " Cannot copy the ......TRN . file is corrupted.
can anybody suggest that what should be done if TRN file is corrupted...because if i manully restore the logs at DR i will need every log file to sync Prod with Dr.log file that is corrupted cannot be skipped...neither it can be restored at Dr.
please suggest the solution..
Thanks in Advance...
Thanks in advance.
-- Chetan
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Jul 20, 2005
Recently, one of our database's mdf and ldf was corrupted. We were able tobring back the database with the capability of importing and querying thedata. However, the data is not the full list. Some of the data are stillmissing because the tables we want still has sone 'chain mis linkage' errorwhen we did a DBCC checkdb/checktable. DBCC couldn't fix those errorseither. We're pretty sure that there are some data still burry under thecorruption. Then we thought of the life LDF file. This file should haverecorded every transaction up to the point of failure. So we trying torecover that file, but there are 2 problems. First is we don't have back upof that file and 2nd, that file is also corrupted. I couldn't backup thecorrupted ldf file at its current state. It's giving me some unrelated errormessage like disk space is out. All I know now is the only hope to recoverthose missing data are in this LDF file. We tried to use this software fromLimingent Log Explorer to recover it. So far no such luck with that. SoI'm asking anyone who has similar experience or problem. Please let me know.I need to know anyway to recover this LDF file, either by using sql server'snative tools or 3rd party tools. Any input is helpfull. thanks in advance.Wei
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Apr 6, 2000
Any ideas on how long it should take SQL Server 6.5 running on a 8 Gig RAID 0 array to "recover" a 4 GIG database. I rebooted the machine this morning (seldom ever have any problems with it) and it seems to be taking an awfully long time (15 min so far). I'll let you know what happens in any case.
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Mar 15, 1999
I need to recover a database, but unfortunatelly i don´t have any backup... Well, it was not my fault. Anyway, i only have the physical .DAT files of the data and log devices of the database.
Will it work if I create two devices with the same name as the old devices, create a database with the same name as the old database within these devices and then run a full script of my old database, then change the 'phy_name' on the sysdevices to point to where my old dats were, or replacing the current ones with the old ones? If not, will anything else work?
Thanks in advance.
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May 3, 2004
My server crashed i had full back up my .BAK file for every database and i reinstalled a fresh verion of sql server 2000 enterprise and when i comme in enterprise manger to restor the master its telling me i need to be in single user mode what do i do.
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Jun 7, 2007
hello i have this problem if anyone can help
EXEC sp_attach_single_file_db @dbname = 'world',
@physname = 'C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLDataworld.mdf'
Msg 1813, Level 16, State 2, Line 1
Could not open new database 'world'. CREATE DATABASE is aborted.
Msg 3456, Level 21, State 1, Line 1
Could not redo log record (9767813:109:10), for transaction ID (1:1182802845), on page (1:27846), database 'world' (database ID 5). Page: LSN = (9767810:70:66), type = 2. Log: OpCode = 3, context 19, PrevPageLSN: (9767812:47:11). Restore from a backup of the database, or repair the database.
Msg 3313, Level 21, State 2, Line 1
During redoing of a logged operation in database 'world', an error occurred at log record ID (9767813:109:10). 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.
thanks
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Aug 6, 2015
I want to know is there any process alert me that my data or .ldf file get corrupted?Â
I've been going through data corruption from last 2 days in row that .ldf getting corrupted and I've to fix it.
Is there anyway I can setup any alert? or any better procedure ?
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May 31, 2000
1) How do I reinstall a fresh copy of the MSDB database (since my current
one is corrupt). Is there any script available?
2) What is the purpose of the MSDB database? Backups and jobs/ Wizards?
Thanks for your help.
Ziggy
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Mar 9, 2000
I have a 3GB DB that I was running an update script on. The sript failed and ran out of transaction log space. I expanded it and stopped and restarted SQL. The user DB is now marked as recovering. How long should I wait for it to recover? I don't want to have to restore again and start all over with my script. Please help.
(By the way this is a restored DB)
Thanks.
LC
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Sep 21, 2006
I am in a big trouble ,
accidently i have issued a DROP DATABASE XXX command in the sql client, thinking its a local server....... The whole 4 months of database database is now dropped.
Please help me , how can i recover the database ....
thanks in advance
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Aug 2, 2007
I accidentally deleted at SQL 2005 database. Is there any way I can get it back? No, there is no backup.
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Jul 9, 2007
Is there any way to get the deleted records from LDF or MDF file. Today by accidentally I executed one query and that dropped my table Inbox(table name only) from database. And in that table there was more 4,000 records, all these lost. So anybody can help me how to recover this table records?. Is there any way to get these?
I don't have any backup for this table.
shaji
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Nov 16, 2007
Hi all
I'm a newbie with SQl Server But somewhere i read that SQL server Data can be Recovered through *.LDF files
now i want to know if i open a table in Enterprise-Manager and delete some records through DELETE statement or
manually, is it possible to recover those deleted records or not? if so how?
Thanks in advance.
Regards.
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Aug 7, 2015
Log shipping was configured 6 months back. A Transaction log file got corrupted today. How to resolve this?
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Nov 23, 1999
What should I have done? Is there anything that can be done other than restoring from backup?
How does one know if the database is really recovering or is EM just joken? I can wait 2 hours
before starting the restore
I was BCPing 12 million rows into a staging table. II used the '-b' option every 20K which I thought
would do a commit and clear the log in batches. After the process EM appeared to show the transaction log
as empty. Upon inspecting the Bcp output file I discovered the message that the BCP did not complete
because syslogs was full. I could not do a truncate transaction log or a dump database. I tried to
do a truncate transaction with no_log and it appeared to just hang. I stopped the SQL Server thinking
I could dump the transaction log, but could not start the Sql Server again. I then stopped the NT Server
because 'if all else fails'. The SQL Server started but the user database if marked as recovering.
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Mar 27, 2008
We currently have a company program in foxpro which inputs all of our information into its database. We are trying to shift from this to new updated software and a SQL database. There is a program we created which converts all the data from our old database into our new SQL database in preparation for our final move to the newer software. However, some of the tables in SQL were not taken directly from our old database but rather added in directly after our initial use of SQL, so when we ran our conversion software, a couple of specific tables were wiped because there was no equivilant within our old database. We already altered our conversion program to not touch those tables again, but is there any way to do a roll back or to find a backup of specific tables?
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Feb 28, 2008
I have a mirred database and have snapshot created from the mirroed database. I can do data selecting from the snapshot. But when the pricipal server is down , I can re-active the mirroed database.( I did succesfully upto this). Then I need to restore the database from snapshot and which failing with following error message.
Code Snippet
Msg 5123, Level 16, State 1, Line 3
CREATE FILE encountered operating system error 3(error not found) while attempting to open or create the physical file 'E:sql_datadevitst_mirrorlog st_mirror_log.ldf'.
Msg 5024, Level 16, State 2, Line 3
No entry found for the primary log file in sysfiles1. Could not rebuild the log.
Msg 5028, Level 16, State 2, Line 3
The system could not activate enough of the database to rebuild the log.
Msg 3013, Level 16, State 1, Line 3
RESTORE DATABASE is terminating abnormally.
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Apr 11, 2006
I use this code to get Tiff files from db , but output file seems to be corrupted :
Dim pubsConn As SqlConnection = New SqlConnection("Server=(local);uid=sa2;pwd=sony;database=pubs;") Dim logoCMD As SqlCommand = New SqlCommand("SELECT pub_id, logo FROM pub_info", pubsConn)
Dim fs As FileStream ' Writes the BLOB to a file (*.bmp). Dim bw As BinaryWriter ' Streams the binary data to the FileStream object.
Dim bufferSize As Integer = 100 ' The size of the BLOB buffer. Dim outbyte(bufferSize - 1) As Byte ' The BLOB byte() buffer to be filled by GetBytes. Dim retval As Long ' The bytes returned from GetBytes. Dim startIndex As Long = 0 ' The starting position in the BLOB output.
Dim pub_id As String = "" ' The publisher id to use in the file name.
' Open the connection and read data into the DataReader. pubsConn.Open() Dim myReader As SqlDataReader = logoCMD.ExecuteReader(CommandBehavior.SequentialAccess)
Do While myReader.Read() ' Get the publisher id, which must occur before getting the logo. pub_id = myReader.GetString(0) ' Create a file to hold the output. fs = New FileStream("\Server1shared1logo" & "KK" & ".tiff", FileMode.OpenOrCreate, FileAccess.Write) bw = New BinaryWriter(fs)
' Reset the starting byte for a new BLOB. startIndex = 0
' Read bytes into outbyte() and retain the number of bytes returned. retval = myReader.GetBytes(1, startIndex, outbyte, 0, bufferSize)
' Continue reading and writing while there are bytes beyond the size of the buffer. Do While retval = bufferSize bw.Write(outbyte) bw.Flush()
' Reposition the start index to the end of the last buffer and fill the buffer. startIndex += bufferSize retval = myReader.GetBytes(1, startIndex, outbyte, 0, bufferSize) Loop
' Write the remaining buffer. bw.Write(outbyte, 0, retval - 1) bw.Flush() ' Close the output file. bw.Close() fs.Close() Loop
' Close the reader and the connection. myReader.Close() pubsConn.Close()
Me.Div1.InnerHtml = ("<embed height=650 width=100% toolbar='' src= '" & "\Server1shared1logoKK.tiff" & "' type='application/x-alternatiff'>")
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Feb 8, 2012
I trying to update my Aggregation Design for a partition using BIDS Helper. Â The current aggregation design contains about 60 aggregations and the new aggregation I am trying to add is across 5 dimension attributes, the product of which is about 500,000 unique values. Â The fact table is about 13,000,000 rows.
When I deploy the aggregation and run ProcessIndex, I get the follow error:
File system error: The following file is corrupted: Physical file: ?E:Program FilesMicrosoft SQL ServerMSAS10_50.MSSQLSERVEROLAPDataTestDB.14.dbcube_2.607.cub
cubemeasuregroup_2.633.detDefaultPartition_2.579.prt852.agg.flex.data. Logical file.
If I remove the new aggregation, deploy, and run ProcessIndex again, it processes fine.
Is there some file size limitation I am running into? Â The agg.flex.data file is 7.8 GB before adding the new aggregation, so it isn't subject to the same 4 GB limit as .asstore.
Windows Server 2008Â 64 bit
SQL Server 2008 R2 (10.50.1746.0) 64 bit
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