Question On Detach/attach Database
May 21, 2007
Hi, all experts here,
Thank you for your kind attention.
I am having a question on detach/attach database. As when we detach/attach database, we have to copy both of .mdf and .ldf files to the targeted filepaths, in this case, when the database is large, then it takes a pretty while to copy the physical files though. In this case, I dont really see the point to detach/attach the database? Instead, backup/restore may be faster? (also, as detach the database, the files has to be taken offline)
Just confused about the way we trasfer database files with detach/attach. I am looking forward to hearing from you shortly for any advices for that.
With best regards,
Yours sincerely,
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Oct 10, 2006
I've just created ASPNETDB database with ASP.NET Security. Now, I want to send this db to orther computer.First, I detached this db, then when I used attach database in that computer, there is an error :Error 602: Could not find row in sysindexes for database ID 8, object ID 1, indext ID 1. RUN DBCC CHECKTABLE on sysindexes. Please help me .Thank.
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Nov 11, 2001
In SQL when I right click on Databases the option to use Attach/Detach is greyed out. I don't understand why. I'm running SQL 7 on Win2000 server and I have Win2k at sp2 and SQL at sp2.
Help please!
Chris
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Jan 2, 2004
An original database (eg A.mdf) is imported/exported to a different server as named B.mdf. The detach of A.mdf was unitentionally not done. It seems that both the database were updated.
A.mdf - 123000KB 25/12/2003
A_log.ldf - 14000KB 25/12/2003
B.mdf - 67000KB 25/12/2003
B_log.ldf - 1024KB 25/12/2003
In this case, which mdf & ldf should be the correct database?
If I I remove A.mdf database by "detach", will B.mdf database work?
SQL server 2000 and SP3 installed.
Assistance is appreciated
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May 9, 2001
This might sound dumb, but BOL says you can use detach/attach to "MOVE" a database but can you detach and copy the files to a new server, leaving the files on the original and running the attach on the new and the old? (effectually a way to copy)? I know how to use data transformations/import,export was curious?
Help appreciated!!
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Jan 30, 2000
I have similar question like Tim asked but from a different angle. I wish I pose my question here too anybody can help answer this.
I tried to use detach and attach method to do backup of the user database (not master, maybe we can do master too) on another server, but it looks the login and permission credential would not go together. I come to see different kind of message I tried to login as non-sa user after I attatch the database on different machine. I would be denied for SQL timeout. It looks like loginand user dose not exist in new server because I did not move master database too. But even if I recreate the login when I tried to associate user with login I will see a message saying user or role already exist in database. If I go back to check the user it did not show up on enterprize manager on that database.
So my question would be
1). how to move login and user together with user database.
2) do we have to move master database where the login infor. reside
3). if so how to move master database from one server to another when other server already have master database exist?
Hope somebody can answer this.
Wislon
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Jul 15, 2006
I'm trying to see the differences between Backup/Restore and Attach/Detach. I backup and detach a database from SQL Server 2000 SP3 and then attach and restore it to SQL Server 2005 SP1.
The differences I noticed are:
1. The restored database has a much larger initial size (database size is same) for data and log.
2. The attached database has a last backup date
3. If the backup is restored over a database, the restored database is showing owned by the database owner of the database restored over but syslogins and sysusers do not match.
I don't understand why #1 happens.
Are there any other differences between Backup/Restore and Attach/Detach?
Thanks,
Peter
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Jul 20, 2005
If I detach a database on a server, then attach the database with asingle file only using the data file...will I lose any transactionsthat were in the original log file? There is a debate going on here atwork where some people think that during the detach, transactions inthe log file are saved to the data file.Thanks!
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Aug 11, 2004
Hello,
MSSQLSERVER VER : 2000
Using - Attach and Detach Database to move the database from one Server to another server.
I did detached the database from Production and attached my test server, everything OK
Questions about - syslogins & sysdevices data dictionary tables
1. When I select * from sysdevices on production it shows all the database name size,phyname etc. After attaching to my test server I cannot see these things.. I know because it different master database but, how do I fix this.
2. syslogins - is there way to move all the syslogins after attaching to test server.
Please let me know if you guys have done anything on this.
Thanks.
Regards,
K.
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May 23, 2006
How I can detach from DB and validate it?
(I mean check if it is detached or not)
Is there any why to return a value from sp_detach_db in C++?
(may a cross posting, please check under developer posts)
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Jan 4, 2002
I have developed a db on a local machine (98) and would like to move it to another machine running nt 4 where it will function as a production db. I am mapped to see the other server (called "labnt"). The drive on "labnt" is partitioned, with the c drive holding programs, and the e drive designed to hold the data.
I would like to move the db (called SNB01) to the MSSQLData subdirectory on the e-drive. I have tried the following sproc to detach:
EXEC sp_detach_db 'SNB01', 'true'
And the following to reattach:
EXEC sp_attach_db @dbname = 'SNB01',
@filename1 = 'labntewmssqldataSNB01_Data.mdf',
@filename2 = 'labntewmssqldataSNB01_log.ldf'
The above path was given me by our network admin guy.
QA gives the following error:
Server: Msg 5105, Level 16, State 4, Line 1
Device activation error. The physical file name 'labntewmssqldataSNB01_Data.mdf' may be incorrect.
Please help. I am thrashing about. D. Lewis
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Sep 23, 2004
Hi folks,
Is it possible to detach a database on SQL Server 2000 and attach it to SQL Server 7 ? I know it's fine to do the other way around. Also, any adverse effects I should be aware of ?
Thanks
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Nov 5, 2007
Hello, everyone:
I want to move a database instance (about 50 user databases) to another server, both are running SQL Server 2000. Which method is better, retore from backup files or detach/attach? Some papers said restore amybe cause incorrect login and password transfer. Is it true?
Thanks
ZYT
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Jun 9, 2008
Hello Experts, How Can i Attach and Detach my MDf file to an instance of SQL server 2005 Programatically or by T-SQL :)
ElmasryA1
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Mar 23, 2006
I created a db in ssms; I detached it and moved it into a subdirectory of a vb app. Now sql server says the database does not exist. If I recreate the database in smss, I can run an INSERT INTO using that db as the destination. However, this only works if I keep it in the mssql data directory. How can I move it to the apps subdirectory so that it can be deployed with the app and still work? BTW, I also tried creating the databases in VS2005 with same results.
This is the connection string (tried this and non-express version with same results):
strDbConn = "Provider=SQLNCLI;Data Source=.SQLEXPRESS; AttachDbFilename=" & DbPath & ";User Instance=True;Trusted_Connection=Yes"
This is the sql statement:
sqlCopyTable = "SELECT * INTO "
sqlCopyTable = sqlCopyTable & CleanDbName & ".dbo." & CleanTableName
sqlCopyTable = sqlCopyTable & " FROM " & RawTableName & ";"
ConnectSQLExpress RawDbPath, "Source"
ConnectSQLExpress CleanDbPath, "Destination"
SourceDbConn.Execute sqlCopyTable
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Mar 21, 2002
What problems could be invoked by stopping SQL Server and copying a user databases data and log files and pasting these files over existing files on another machine.
Ex:
MyDB on Server1
MyDB on Server2
Stop SQL Server Server1 and Server2
Copy Server1.MyDB files
Over write Server2.MyDB files
Start SQL Server Server1 and Server2
Make sense. This scenerio seems to work but wonder what side affects could result.
Any comments would be helpful!!
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Jun 9, 2008
Hello Professionals, How can i attach and detach my mdf file to an instanse of sql 2005 programatically or by T-SQL
ElmasryA1
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Sep 8, 2005
Alan writes "Is it possible to create scripts which can be started remotely
to attach and detach databases into SQLExpress 2005.
If so how."
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Apr 15, 2008
Hello all,
We are planning to change the location of the log files from my production server. We have setup the mirroring also for those databases. I know for the databases without mirroring job i could detach the database, copy the log file to the target location and attach the database with the new logfile location. But for the mirroring databases I don't have any idea how to do that. Could some body guide me thorugh the process on how to do this task? thank you very much for all your help!
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Jun 18, 2002
We have a hardware problem and will be getting a new RAID HDD system.
I've asked the tech onsite to backup and detach the MSDB and then reattach.
Can this be done, I expect to have him detach the new MSDB when MSSQL is re-installed. Then replace that file with the previously detached version and run reattach from QA(?)
Will this work.
TIA
JeffP...
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Mar 20, 2014
We have 5 databases which will sum up to 8+TB, housed in our EDW server. We are planning to migrate to another storage system for better performance.
I am planning Full backup and Differential backup and detach the DB and restore the DB in the new storage system.
Or should I detach,copy the data and log file and attach the files, will this approach have any advantages ?
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May 23, 2001
A database move was accomplished by detaching the database from the legacy server and attaching it to the new server. The servers ran NT 4, SP6a, SQL 7 SP2. The new server had the same name and IP as the old server.
However that process (detach attach) does not bring over the users (who had access to the database on the legacy systems) correctly.
Under databases, roles the users existed. Under security, logins they did not.
We were obliged to drop the roles and recreate the logins and assign new roles. In the case of an NT user group we were unable to drop it. We had to create a new one and add the users to that group under User Manager.
So far I have not found anything that deals with the user account/role problem.
We have to move a similar database tonight. Do any of you know of an alternative "move" that brings the user roles/logins across correctly?
Thanks in advance.
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Feb 28, 2008
Hi!
I did:
alter database mydb set single_user with rollback immediate;
exec sp_detach_db @dbname='mydb', @keepfulltextindexfile='true';
then I tried to copy files to new location on other drives, same server but got
>>Cannot copy <myfile>: Access is denied
Make sure the disk is not full or write-protected and that the file is not currently in use<<
I also tried rename of file without success.
I also tried with db service stoppet (not preferred) without success.
How to find out, which process locks the files?
Best regards
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Feb 12, 2002
Hello Everybody ..
I am trying to detach and attach a database on SQL 7.0 Server with SP 2 through Enterprise manager . However if i right click o the Database and go to all task , i see the ' detach database' greyed out .
The same thing is seen for ' attach Database 'when i try to attach the database .
Although it can done through T-SQL commands also , does any body know the reason why this field is greyed out ?
Does it depend on the SQL 7.0 Service pack or any kind of special permissions ? The same is visible on SQL 2000 Server Enterprise Manager .
Has anybody come across this problem ?
Many thanks in advance
Yatin.
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Apr 20, 2001
How do you detach a database on one server and attach it to another
A good link will help
Thankx in advance
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Sep 17, 2002
Is it possible to detach a SQL 7.0 database without removing the database from the server??
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Jun 18, 2008
hi
Please help me .I have detached a database in sql server 2005 using object browser. Now i cant see the database in object browser of sql server management studio .I tried to attach it but the mdf file of that database is missing in the data folder. i had not created the backup.
Can any one help me how to reattach that database.I will be very thankful to him..
thanks !!
Ajeet
Ajeet Kumar
Software Developer
Ustech
India
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Jul 1, 2006
I need some insight if possible. I installed a new server (to replace an aging machine) with SQL 2000. After installing SQL on the new server I tried to detach a database from the old server so that I can attach it to the new instance of SQL. My problem is that when I do the process I am stopped with an error message.
“Error 8146: procedure sp_detach_db has no parameters and arguments supplied.”
This is happening with all of the user databases on the old server.
I have tried to run this using both the Query Analyzer and from the right-click menu option and both return the same error message. Any help would be greatly appreciated.
Thanks.
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Feb 27, 2004
I'm trying to detach a database and reattach to another server. When trying to detach it using Enterprise Manager, the command is greyed out. I've tried taking the database offline first but the command is still not enabled. I'm logged in as sysadmin. What gives?
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Jan 17, 2007
I open enterprise manager , right click and choose detach detach database.
I see line : connections using this database.
I think that this is connection from client connect to database.I feel that connection
disappear automatically after time interval.
I want to know how long time ?
Thank you very much.
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Mar 6, 2008
I have the need to detach a database from code, at the moment I am using 'SSEUTIL -d' for this in my code and it works OK but now I want to change to using an SQLCommand. Here is my code so far:
Code Snippet
Dim conDatabase As SqlConnection("Data Source=.SQLEXPRESS;AttachDbFilename=MyMDFPath"; Integrated Security=True;Connect Timeout=60;User Instance=True")
Dim comDetach As New SqlCommand("EXEC master.dbo.sp_detach_db '" + MyMDFPath + "'", conDatabase)
conDatabase.Open()
comDetach.ExecuteNonQuery()
conDatabase.Close()
However, when I execute this I always get the following exception:
Code Snippet
Cannot detach the database 'MyMDFPath' because it is currently in use.
It seems obvious to me that the problem is that to do the detach I create a connection - how do i get around this?
Thanks!
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Oct 24, 2006
There are two databases on two web servers, db01 is on server01, db01_replica is on server02, db02 is on server02, db02_replica is on server01. db01 and db02 are both for one system. Each time after doing performance test, I have to recover databses. I copy the data files in a folder, try to use detach and attach to recover databases. But with two replication dbs, I don't know how to do it. The replication db should also be recovered.
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