Recover Data From .mdf And .ldf File?
Jun 15, 2006
Hello!
Hopefully someone can help me with the following (potentially huge) problem:
We've got a simple database application running on microsoft sql desktop engine. This database contains two tables. Up until now all worked fine, but probably due to a programma that crashed part of the database seems to be corrupted or broken while today only one table contains/returns data and the other table does not return any values!
When I open the .ldf and .mdf files in notepad I see that there is data belonging to both the tables. But how do I recover it??
The max. size of the database has not been reached by far (it's only 9Mbs), the sql queries are correct.
This .ldf file is a log file (?) I can't find detailed info about the principles of these .ldf and .mdf files on the internet, is it possible to trace back what has happened en recover the database that way?
Thanks in advance.
Greetings,
Rens Voogd
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Aug 3, 2002
Hi All,
By mistake i delete database from sql server. Due to which the the mdf and ldf file of the datbase are removed from my system. Then i used file recover utility and retrived my mdf and ldf files.But now i am not able to attach those files into databse. These mdf and ldf files has been corrupted. Now how can i recover my data from those mdf and ldf files.Please answer me if you have any solution on this problem.
Regards,
Satish Rotella
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Feb 24, 2002
Our SQL database log file got physically deleted. Now the database is in suspect mode. Is it possible to recover / restore the database just with the data file.
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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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Aug 24, 2006
hi all,
i have SQL 2000 server with SP3, yesterday my database was suddenly goes to suspect mode. then i found log in sql server log. and it shows following text:
I/O error (bad page ID) detected during read at offset 0x00000000030000 in file 'C:Program FilesMicrosoft SQL ServerMSSQLDataMFS_Data.MDF'..
kindly, do needful for recover data from this file...
Tejas Kishanwala
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Oct 21, 2015
I am working on SQL Server 2008 R2 and unfortunately I have lost my .mdf file after detaching it from my database, but the .ldf is still in my system. Is there a way to recover my database from .ldf file?
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Jul 10, 2015
Recently i got task from Senior DBA, as : Recover a database without LOG file Currently Data File is available.
Log file is also available, but shows size as 0 KB. Means Log file is corrupted.
Currently existing DB is shown as Offline Mode in SSMS.
So i got below link:
[URL]
When i tried 1st/2nd solution from above link, i got below message:The log cannot be rebuilt because there were open transactions/users when the database was shutdown, no checkpoint occurred to the database, or the database was read-only. This error could occur if the transaction log file was manually deleted or lost due to a hardware or environment failure.
To try that 3rd solution, I had to DELETE/Remove existing DB from SSMS, so i can create New DB with same name.
When i tried to delete Log file from Command Prompt, using below command, Windows replied that File is corrupted, so it cannot be deleted.
DEL /F /Q /A C:Program FilesMicrosoft SQL ServerMSSQL11.SQLEXPRESS2012MSSQLDATAMyDB.ldf
Meanwhile my Senior DBA brought DB in Recovery Pending mode.
So if i want to go for 3rd solution,then i need to DELETE file, But Windows is not allowing me.
[URL]
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Jul 6, 2006
Dear All,SOS Please Help.I have a MS-SQL DB with 4 .ndf files. One (first) .ndf file is missing.somehow got deleted??. Is there any way can rebuild my DB.The .MDF and .LDF files are in tact.Please help asap.Dhumbak*** Sent via Developersdex http://www.developersdex.com ***
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Dec 22, 2006
Hi,
My database corrupted because when I was running an update query, there is a power failure. After the computer booted, I cannot open the database anymore, it just not responding. Then I stop the sql server service, and tried to rename the .mdf and .ldf. After that it worked normally, but I need the data from the corrupted mdf file, I tried to attach the database but it just hanged. I even tried to attach without the .ldf file but it didn't work either, so I concluded that the problem is with the mdf file.
Is there any way to recover my data ??
Thanks in advance
Regards,
Edwin
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Dec 23, 2003
Hi ,
I got problem in production server at client place(No backup copy & not replicated,it's a SQL SERVER 2000 Enterprise server),by mistake client updated the data without using where condition then updated lakhs of rows (in SQL server autocommited),Now I need to recover this data from LOG file(.ldf).I tried with LOG EXPLORER(Third party tool) Trail version recovered from default database(Northwind,Pubs).But client not willing purchase this S/W for simple cause,How can we recover the data from LOG file.
1.Can we write the Program in C# to read the SQL Server Log and show the past transactions?
2.Is There any Stored procedures exist in SQL Server to read the day transactions in log file and take the backup?
3. How to read Transactions Log file in SQL Server 2000?
It's very Urgent,I am not expert in SQL Server 2000.
Could U Please Help me with possible solutions.
Regards,
Harikrishna.
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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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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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Nov 10, 2006
catcat writes "Hi All,
Our MSSQL 2000 server crashed yesterday and one database cannot be restored. the latest backup we have is june. We can only recover the MDF file from the harddisk and according to our admin, it cannot be restored anymore because no proper shutdown was made.
Will appreciate your help here."
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Jul 20, 2005
I have SQL server 2000 which recently crashed. I try to recover it andfound out that the Master database is corrupt. I never backup myserver using inline sql backup nor any third party backup program thataware to SQL server. But I have full system backup of volume c on tape(using NTBackup), which includes old version of Master database. Myquestions are:1. How can I recover this file into SQL server?2. If so, it is not risky to recover Master database from two weeksago?Thanks in advance!
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Jun 22, 2006
raju writes "while attaching the mdf file we are getting the following error
error 823
i/o error (bad page id) detected during read at offset
0x0000001404000 in file d:filename"
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Nov 19, 2007
Hi,
The standby file (.tuf file) got deleted accidentally on the secondary. How can I recover the database without the standby file?
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Dec 31, 2003
I wrong delete all contents of a table.
I was going to restore the full backup database but the file is corrupt.
I have:
The last 5 days backups of Transaction Log;
The actual Transaction Log;
Can you please give me any ideas of how to restore de transaction logs backups and/or uncommitted de deletion of all rows of the table.
Thanks,
Paulo
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Jun 6, 2007
Hi,
I need to receover lost data. My colleague ran a database creation script to create a new database, from Sql Query Analyzer. While doing this, an existing database was selected in the combo box that appears on the top,which led to deletion of records from the existing database. I have a backup of the d.base taken 10days ago. The data was lost yesterday. Is there any way I can restore the database to the previous condition.
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Nov 10, 2007
Hi, I was wondering after I had deployed my data base on the internet and made some modifications with her, what is the best approach to recover the data base deployed? Now if I'm changing some stored procedure in the data base deployed I have to make the same change in the original data base, it gives me a lot of work.
Thank you very much.
Fell free to correct me if I misspeled something.
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Aug 9, 2007
Hello!
Hopefully someone can help me that i have lost my data on my D: drive.
driven shown all folder but in side of the folder there is nothing.
i have lost my Doc, xls, Jpeg etc. all files.
please help me what sould i have to do.
thanks
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Nov 27, 2007
Hi,
Let's suppose i am having a table in which i am having 10,000 records, "I d't need the data of the that table" by thinking this i deleteed all teh data of the table. But suddenly after 2-3 days i thought i need that data.
So will i able to recover the data in both cases :
Delete - If i used teh Delete command to delete all teh data of teh table then is it possible to recover the data in teh above condition.
Truncate - Or If i have used the Truncate command to delete the data from the table then is it possible to recover the data in above case.Please tell me , if it is possible in both or any cases then tell me how to recover it. Remeber i am not having any backups of the data.
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Jan 24, 2006
I want to learn that if my query deleted all data in the table by mistake, is it possible recovery and how?
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Oct 16, 2007
Hi,
Is there any way to restore the old data after changes made to the table.
Suppose i run a query Update CustomerDetails set customerName='Michel' and i forgot to mention the CustomerID whom name should be changed to Michel,in that case in all the CustomerName will update by Michel Name.
So,How can i revert back the changes made to the table?
Thanks in advance.
Regards,
- Hitesh Kumar
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Jun 9, 2004
Hello, everyone:
Does any body have the experience to execute data warehouse backup/recover? What I want to know is how to backup/recover database in data warehouse and cubes.
Thanks.
ZYT
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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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Oct 18, 2006
I accidentally deleted some useful data in my database. I have both .LDF and .MDF files for this database.
Is there a way to recover this database to a point of time?
Thx.
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Nov 29, 2006
Dear All,One of our employee made a mistake and deleted something from database.I would like to recover that log file without restoring the backup andthe other log files. The reason I want to do this is our database isgetting real time information I cannot shut down the database. Is thereany way to do this please let me know and help me .Kindly regardsLS
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Jul 20, 2005
HiWhen we issue a DBCC SHRINKFILE with empty option, the data fileis removed and the space is alloted back to the OS.Same way when we issue a an ALTER DATABASE to remove a database,all the data files and transaction log files are dropped.But can these files be recovered again by using any of the diskrecovery tools?Achilles
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Mar 10, 2008
Can I restore records from a MSDE2000 Database
I copied some stored procedure from other database but unfortunately, I drop all records
I have checked the Transaction Log which is only 1024 KB
I have used Red Gate Log Resure but cannot find the log
Anyone can Help!!!!!
Thanks
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Jun 13, 2014
I created a new database and want to recover data from a backup this script
use master
go
restore database new
from disk='D:
ew.bak'
go
but get an error
Message 3141, Level 16, State 0, Line 1
The database to be restored was named 'ats342'. Reissue the statement using the WITH REPLACE option to overwrite the 'new' database.
Message 3013, Level 16, State 1, Line 1
RESTORE DATABASE is terminating abnormally.
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Nov 1, 2007
Hi all
Any way to Recover truncated, deleted, or modified data . i will be appreciated for any help
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Aug 14, 2006
Hi all, I am working with SQL Server2000 and I have done a horrible thing here.
We here have an script that delete all data from all user tables of a database, and I run it in the master DATABASE.
As we don't made backups of this database, now somethings of the database aren't working.
Here is the script:
declare @table_name sysname
declare @alter_table_statement varchar(256)
declare @delete_statement varchar(256)
-- definindo o cursor...
declare table_name_cursor cursor local fast_forward for
select
name
from
sysobjects
where
xtype = 'U'
and
name <> 'dtproperties'
-- desligando os vínculos...
open table_name_cursor
fetch next from table_name_cursor into @table_name
select @alter_table_statement = 'alter table ' + ltrim(rtrim(@table_name)) + ' nocheck constraint all'
exec(@alter_table_statement)
while @@Fetch_Status = 0
begin
fetch next from table_name_cursor into @table_name
select @alter_table_statement = 'alter table ' + ltrim(rtrim(@table_name)) + ' nocheck constraint all'
exec(@alter_table_statement)
end
close table_name_cursor
open table_name_cursor
fetch next from table_name_cursor into @table_name
select @delete_statement = 'delete from ' + ltrim(rtrim(@table_name))
exec(@delete_statement)
while @@Fetch_Status = 0
begin
fetch next from table_name_cursor into @table_name
select @delete_statement = 'delete from ' + ltrim(rtrim(@table_name))
exec(@delete_statement)
end
close table_name_cursor
open table_name_cursor
fetch next from table_name_cursor into @table_name
select @alter_table_statement = 'alter table ' + ltrim(rtrim(@table_name)) + ' check constraint all'
exec(@alter_table_statement)
while @@Fetch_Status = 0
begin
fetch next from table_name_cursor into @table_name
select @alter_table_statement = 'alter table ' + ltrim(rtrim(@table_name)) + ' check constraint all'
exec(@alter_table_statement)
end
close table_name_cursor
deallocate table_name_cursor
I have tried to restore master table with the restore function, but it doesn't work. When I try to do this I received a message informing that it can't copy the data because one file was in use. The server was in a single user mode.
Is there anyway to recover the data that I have lost?
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