SQL Server Database Primary Data File got lost - sql-server

SQL Server 2008 R2 stopped all of a sudden due to (maybe) Power Fluctuation.
I tried all the possible ways to restart the it but every time it is failing with the error
The request failed or the service did not respond in a timely fashion.
Some of the ways I tried are
Making the SQL Server to log On as "Local System" instead of "NetworkService"
Replacing of Master.mdf and mastlog.ldf files from the "Bin/Templates" folder
Disabling "VIA" (which was already disabled)
But all in-vain :(
On checking further I noticed that both the data files i.e. mydb.mdf and mydb.ldf of my database are not there in the DATA folder and instead there are mydb_1.ndb and mybd_2.ldf files.
How to recover mydb.mdf file and to restart the SQL Server?
Thank you.

sql data files can be named anything so the mydb_1.ndb could be your data file.
If that's true you should be able to recover the data by:
Install a new sql server (sql express would work if the DB is < 10GB)
move the mydb_1.ndb and mybd_2.ldf onto that server
Use "Attach..." from ssms to add the database to the new server
If you are lucky and that ndb is just a differently named mdf file you should be able to access the data.
Then you can repair your existing server (reinstall will be easier than messing with the master database unless you've got other dbs on there) and move the database back over i.e. do the same attach... method
Oh - and start backing it up :)

Related

AWS SQL Server 2016 Restoring 2 Databases Error Message

I am testing to see if a SQL Server server based program can also work on AWS Cloud Server with 2016 SQL Server on the Amazon server. In order for me to test it, I need to restore 2 databases.
The first one eventually restored fine once i figured it out...restoring the database from my S3 "bucket" BAK file.
So then I tried to restore the 2nd database, using the same restore stored proceudre, and get this message:
[2017-12-28 02:44:22.320] The file 'D:\rdsdbdata\DATA\smsystemdata.mdf' cannot be overwritten. It is being used by database 'amwsys'.
[2017-12-28 02:44:22.320] File 'sm_system_data' cannot be restored to 'D:\rdsdbdata\DATA\smsystemdata.mdf'. Use WITH MOVE to identify a valid location for the file.
I can't find where to use the WITH MOVE because it won't let me restore it interactively through the Management Studio restore menu; instead I have to give it a stored procedure command:
exec msdb.dbo.rds_restore_database
#restore_db_name='sample99',
#s3_arn_to_restore_from='arn:aws:s3:::lighthouse-chicago/sample999.bak';
And each time it tells me it can't restore it because it's going to overwrite the first database's files.
Much thanks
bill
I think you are stuck in RDS's restriction.
I had the similar problem as you. Multiple restore from one DB instance is impossible at RDS.
Here is RDS's restriction you may encounter.
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/SQLServer.Procedural.Importing.html
You can't restore a backup file to the same DB instance that was used
to create the backup file. Instead, restore the backup file to a new
DB instance. Renaming the database is not a workaround for this
limitation.
You can't restore the same backup file to a DB instance multiple
times. That is, you can't restore a backup file to a DB instance that
already contains the database that you are restoring. Renaming the
database is not a workaround for this limitation.
If you are in this case, you can't use .BAK file. To avoid it, you should create DB instance with DML and import table data.

Error 21 when trying to delete a SQL Server DB

I had a SQL Server database on an external HDD. I forgot to detach the DB. I do not need it anymore, but I am unable to delete or take it off line.
When I try to delete or take the DB offline, I get the following error.
Msg 823, Level 24, State 2, Line 7
The operating system returned
error 21(The device is not ready.) to SQL Server during a read at
offset 0x00000000012000 in file 'E:\Kenya Air\Monet - Paulus.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 have tried to run a DBCC CHECK, but I get the same error.
Try taking the database offline and then online.
Alter database DatabaseName set offline
Then bring it back online after a while
Alter database DatabaseName set online
I would try the system stored procedure sp_detach_db in SQL. From the fine manual:
Dropping a database deletes the database from an instance of SQL Server and deletes the physical disk files used by the database. If
the database or any one of its files is offline when it is dropped,
the disk files are not deleted. These files can be deleted manually by
using Windows Explorer. To remove a database from the current server
without deleting the files from the file system, use
sp_detach_db.
The OS is reporting exactly what you said in your question: In dropping the database, SQL Server attempts to remove the file from a device that no longer exists. Thus the database cannot be "dropped", per definition. But perhaps it can be detached, because that affects only the system's internal definition of the list of available databases.
Do NOT try to set the database offline and back online - this will eventually make things worse.
Stop SQL Server - move the respective database files (data and logfile(s)) to a different location. Start SQL Server again - eventually the DB will indicate (restore pending) - now delete the DB from SQL server. Next attach the database files back to the server and you should be ok - unless the files are physically corrupt. I have seen this problem numerous times - especially on virtualized SQL instances where SQL server is set to autostart and wasn't shut down in a coordinated manner before a system reboot. A momentary connection problem to either the data or log file can cause this problem. In case your system shows this problem more than once set SQL server to start manually.
I had the same problem, even when I wanted to take the database offline, it gave me this error.
But the problem was solved by restarting SQL.

Get local copy of SQL Server hosted on Amazon RDS

I have a small (few hundred MB) SQL Server database running on RDS. I've spent several hours trying to get a copy of it onto my local SQL Server 2014 instance. All of the following fail. Any ideas what might work?
Task -> Backup fails because it doesn't give my admin account permission to backup to a local drive.
Copy Database fails during create package with While trying to find a folder on SQL an OLE DB error was encountered with error code 0x80040E4D
From SSMS, while connected to the RDS server, running BACKUP DATABASE. This fails with message BACKUP DATABASE permission denied in database 'MyDB'. Even after running EXEC sp_addrolemember 'db_backupoperator' for the connected user.
General scripts generates a 700MB .sql file. Running that with sqlcmd -i fails at some point after producing plausible .mdf and .ldf files that can't be mounted on the local server (probably because the sqlcmd failed to complete and unlock them).
AWS has finally provided a reasonably easy means of doing this: It requires an S3 bucket.
After creating a bucket called rds-bak I ran the following stored procedure in the RDS instance:
exec msdb.dbo.rds_backup_database
#source_db_name='MyDatabase',
#s3_arn_to_backup_to='arn:aws:s3:::rds-bak/MyDatabase.bak',
#overwrite_S3_backup_file=1;
The following stored procedure returns the status of the backup request:
exec msdb.dbo.rds_task_status #db_name='MyDatabase'
Once it finished I downloaded the .bak file from S3 and imported it into a local SQL Server instance using the SSMS Restore Database... wizard!
The SSIS Import Export Wizard can generate a package to duplicate a whole set of tables. (It's not the sort of Copy Database function that relies on files - it makes a package with data flow components for each table.)
It's somewhat brittle but can be made to work :-)
SSMS Generate Scripts feature can often fail with any large data set as the script for all the data is just to large/verbose. This method never scripts out the data.
Check this out: https://github.com/andrebonna/RDSDump
It is a C#.NET Console Application that search for the latest origin database Snapshot, restore it on a temporary RDS instance, generate a BACPAC file, upload it to S3 and delete the temporary RDS instance.
You can transform your RDS snapshot into a BACPAC file, that can be downloaded and imported onto your local SQL Server 2014 instance using the feature answered here (Azure SQL Database Bacpac Local Restore)
Redgate's SQL Compare and SQL Data Compare are invaluable for these types of things. They are not cheap (but worth every penny imo). But if this is a one-time thing, you could use the 14 day trial and see how it behaves for you.
http://www.red-gate.com/products/

SQL Server Restore Error - Access is Denied

I created a database on my local machine and then did a backup called tables.bak of table DataLabTables.
I moved that backup to a remote machine without that table and tried to do a restore but get the following error:
System.Data.SqlClient.SqlError: The operating system returned the
error '5(Access is denied.)' while attempting
'RestoreContainer::ValidateTargetForCreation' on 'c:\Program
Files\Microsoft SQL Server\MSSQL.1\MSSQL\DataLabTables.mdf'.
How do I fix my rights, if that is the problem?
I have just had this issue with SQL Server 2012.
It turns out all I had to do was tick the box marked 'Relocate all files to folder' on the 'Files' section:
(Click to see image full size)
This of course assumes you have the correct version of SQL Server installed.
From the error message, it says there's an error when validating the target (c:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\DataLabTables.mdf) of your restore operation.
That sounds like:
a) that file already exists (because you've already restored it previously) and is in use by SQL Server
or
b) that directory doesn't exist at all
In your question, you mentioned you created a backup for that table - that's not how SQL Server backups work. Those backups are always the whole database (or at least one or several filegroups from that database).
My hunch is: you've already restored that database previously, and now, upon a second restore, you didn't check the checkbox "Overwrite existing database" in your restore wizard - thus the existing file cannot be overwritten and the restore fails.
The user that's running the restore on your remote server obviously doesn't have access to that directory on the remote server.
C:\program files\.... is a protected directory - normal (non-admin) users don't have access to this directory (and its subdirectories).
Easiest solution: try putting your BAK file somewhere else (e.g. C:\temp) and restore it from there
I was having the same problem. It turned out that my SQL Server and SQL Server Agent services logon as were running under the Network Services account which didn't have write access to perform the restore of the back up.
I changed both of these services to logon on as Local System Account and this fixed the problem.
Recently I faced this issue with SQL 2008 R2 and the below solution worked for me:
1) Create a new database with the same name as the one you are trying to restore
2) While restoring, use the same name you used above and in the options, click the overwrite option
You might give the above a shot if the other solutions don't work.
The backup creator had MSSql version 10 installed, so when he took the backup it also stores the original file path (to be able to restore it in same location), but I had version 11, so it could not find the destination directory.
So I changed the output file directory to C:\Program Files\Microsoft SQL Server\MSSQL11.MSSQLSERVER\MSSQL\DATA\, and it was able to restore the database successfully.
Source
I had a similar problem. I tried to restore a 2005 .bak file, and i received exactly the same error. I selected the overwrite option as well to no avail.
my solution was to grant the SQL user access to the directory in question, by going to the folder and editing the access rights through the property screen.
lost a couple of hours to this problem too. got it going though:
"access denied" in my case really did mean "access denied". mssqlstudio's user account on my windows device did NOT have full control of the folder specified in the error message. i gave it full control. access was no longer denied and the restore succeeded.
why was the folder locked up for studio ? who knows ? i got enough questions to deal with as it is without trying to answer more.
I had this issue, I logged in as administrator and it fixed the issue.
Another scenario could be the existence of multiple database paths. First, make note of the path where new databases are currently being stored. So if you create a new empty database and then do Tasks/Restore, make sure that the path the restore is trying to use is the same directory that the empty database was created in. Even if the restore path is legal, you will still get the access denied error if it is not the current path you are working with. Very easy to spot when the path is not legal, much harder to spot when the path is legal, but not the current path.
Sorry because I cannot comment...
I had the same problem. In my case the problem was related to trying to restore in an old sql server folder (that existed on the server). This is due to old sql server backup (i.e. SQL Server 2012 Backup) restored in a new sql server (SQL Server 2014). The real issue is not too different from #marc_s answer. Anyway, I changed only the target folder to the new SQL Server DATA folder.
This may not be the best solution, but I was trying to do the restore at SQL Server 2005, but I changed to SQL Server 2008 and it worked.
Got problem like this. Error caused by enabled compression on SQL Server folders.
Frnds... I had the same issue while restroring database and tried every solution but could nt get resolved. Then i tried to re install SQL 2005 and the problem solved. Actully last time i forgot to check on customize option while instlling SQL.. It comes two times while installing and i checkd it for ones only..
In my case - I had to double check the Backup path of the database from where I was restoring. I had previously restored it from a different path when I did it the first time. I fixed the Backup path to use the backup path I used the first time and it worked!
I ended up making new folders for Data and Logs and it worked properly, must have been a folder/file permission issue.
This also happens if the paths are correct, but the service account is not the owner of the data files (yet it still has enough rights for read/write access). This can occur if the permissions for the files were reset to match the permissions of the folder (of course, while the service was stopped).
The easiest solution in this case is to detach each database and attach it again (because when attaching the owner is changed to be the service account).
Try this:
In the Restore DB wizard window, go to Files tab, Uncheck "Relocate All files to folder" check box then change the restore destination from C: to some other drive. Then proceed with the regular restore process. It will get restored successfully.
I had the same problem but I used sql server 2008 r2, you must check in options and verify the paths where sql going to save the files .mdf and .ldf you must select the path of your sql server installation. I solved my problem with this, I hope it helps you.
Then try moving it to a sub folder under the C:, but verify that the user has full rights on the folder your use.

SQL Server Copy Database Issue

I'm running the copy database wizard on a 2008 R2 instance of SQL Server.
The database I want to copy is a SQL 2000 database.
I'm copy that database to another SQL SErver 2008 R2.
The wizard uses SQL authentication for both servers, and both are sysadmins.
When I run it, I get the following error (FYI I have tried both copying the logins and leaving them out):
Event Name: OnError
Message: ERROR : errorCode=-1073548784 description=Executing the query "sys.sp_addrolemember #rolename = N'RandomRoleName..." failed with the following error: "The role 'RandomRoleName' does not exist in the current database.". Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly.
helpFile= helpContext=0 idofInterfaceWithError={C81DFC5A-3B22-4DA3-BD3B-10BF861A7F9C}
StackTrace: at Microsoft.SqlServer.Management.Dts.DtsTransferProvider.ExecuteTransfer()
at Microsoft.SqlServer.Management.Smo.Transfer.TransferData()
at Microsoft.SqlServer.Dts.Tasks.TransferObjectsTask.TransferObjectsTask.TransferDatabasesUsingSMOTransfer()
Any help would be appreciated!
Jim
My suggestion is dont use the copy database wizard. Create a full backup of the database on the 2000 server and then restore it on the 2008 server.
If you google "Microsoft.SqlServer.Management.Dts.DtsTransferProvider.ExecuteTransfer Copy Database Wizard" you will find that many many people have gotten this same error or other nearly identical smo errors... no-one appears to have gotten past it.
That's isn't to say its impossible... just, restoring a backup is so much easier then the wizard or troubleshooting the wizard. Good luck.
The copy wizard had missed some security and IIRC it's caused by subtle differences in security tables, principals etc between the 2 versions.
Frankly, the easiest way is to do one of these two:
backup/restore
detach, copy, attach
If you don't have access to the O/S and can't get it, another option is to create the missing role(s) in the background as the copy runs. You have to catch it between the creation of the files and when it tries to reference the roles, but there are a few seconds in which to create them if you keep clicking execute - I managed to create 9 roles.
Unfortunately, you'll end up with the roles in another database too (while yours cannot be used) so those need to be deleted.
Of course, this is only an option when you really can't use the other method.
Though the answer which is using the backup technique solves the problem generally, after facing the same issue several times, I was able to trace down the root of the problem using the Event Viewer of Windows to that the Database Copy wizard, using the SQL Agent, will eventually create a Job for the agent to run, after which the Agent will run using its own credentials (i.e. the credentials that you can look up in Windows Services, in my case, NT Service\SQLAgent$SQL2014)
All you need to do is to go the folder where SQL Server creates DB files (e.g. C:\Program Files\Microsoft SQL Server\MSSQL12.SQL2014\MSSQL\DATA by default for SQL 2014) and give the SQL Agent windows user write/read access on the folder.
The reason can be that a file with the new Database name already exist on the filesystem. We encountered this when we renamed Database X to X_Old, and tried to copy database Y to X. This cannot be done, because database X_Old is still associated with the filename X.
Either delete the conflicting database, or rename the file on the file system.
See http://codecopy.wordpress.com/2012/01/03/error-while-copying-a-database/

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