Recently we had multiple production failures because one database was in single-user mode. I am trying to recreate this scenario to write a script that will kick out that connection that was holding database in single-user.In SSMS window 1 I run the following code:
use master go alter database test set single_user with rollback immediate
[code]....
Yes, it shows one record, but the database name is master, not test. And indeed, I run it from the context of master. Also tried sp_who, sp_who2, sys.dm_exec_requests - nothing works. For dm_exec_requests it shows nothing because it does not run at the current moment.Any other solutions to catch this SPID with a script?
Hello FacultiesWhen doing recovery after loss of data files, one would like tostart SQL Server in single user mode. Is this possible?Thanks in advanceDebashish
I get an error in my ASP.Net application which states: "The server will drop the connection, because the client driver has sent multiple requests while the session is in single-user mode. This error occurs when a client sends a request to reset the connection while there are batches still running in the session, or when the client sends a request while the session is resetting a connection. Please contact the client driver vendor."
I checked out the database properties, it shows that SQL is set for 'MultiUser' mode. What else do I need to check and how can I fix this?
I have hit a problem while trying to re-start the server in Single User Mode in order to restore the master database. I run the command sqlservr -m and it locks after the 'non-unicode character set' line each time.
Is there anyone who knows anything about this? Have I missed something or is it a bug? I have researched quite a few books and haven't found any reference to this problem.
This question came to me from a friend and I don't have a lot of details so I apologize in advance. I thought it might be worth a shot to ask here since I couldn't find anything on point in the MS help or KB. A SQL Server 7 database running on an NT 4.0 box is having a full database backup nightly. The backup routine is pretty standard, created using the Maintenance Wizard. It backs up two databases on the server. The problem is that when folks come into work in the AM, the databases are in Single-User mode and someone has to go in and change this. Is this normal behavior? My (admittedly limited) understanding of SQL 7 backups is that they are relatively transparent, and Single User mode is not necessary. You can operate normally other than you can't to any unlogged txn's while the backup is running. They have not done anything explicit to put the databases in Single-user mode when the backup begins. Any ideas how to prevent this from happening? (Or how to automate the switch out of Single-user mode when the backup is completed?)
I have written a VB/SQL Server based application. The application uses stored procs and the SQL Server security model to handle logins and permissions. My partner and I want to sell the applicaiton to specific businesses and offer a rental program for smaller companies that would like to use the application to connect to an internet based database. The application uses TCP/IP with a specific port number to connect to the database so it can be used in or out of LAN.
If we rent the application, maintenance is simple. I just create a user in the database with the login/password the user would like and viola they have access to the data.
When a company wants to purchase the program to use in-house, we would like to offer two alternatives: #1 a single user or #2 a multiple user SQL Server database.
My question is if a company purchases the single-user version, how can we keep them from adding users to their database. In other words, since we have no control over the database at the client's location, how can we ensure that it remains a single-user database?
We have a database that is somehow switching to single-user mode every few days. We suspect that the client application (Access 97) written by a non-developer may be doing something funny.
Has anybody encountered such a problem? How is this possible?
Dear All, i've altered my database to single user mode. and now trying to change to multi user mode with the query alter database mydb set multi_user but it is saying that it is in single user mode. query analyser closed. how can i change that to multi user mode? idont know who opend that to run sp_who it is not showing the database in dropdown list in enterprise manager.
thanks in advance
Vinod Even you learn 1%, Learn it with 100% confidence.
I am using SharePoint Services 3.0 (SP1) with default configuration options, which installs the Microsoft##SSEE instance of SQL to my local C: drive.
While attempting to relocate the files to another drive, I set one of the databases (as recommended) to Single User by using the SQL Server Management Express tool.
I cannot now reset that database to Multi User, even by executing the query
I tried to run the SQL in single user mode by executing sqlservr.exe -m. The execution starts in a DOS window but apparently stops at one point. The SQL Server will run in single user mode but when i tried to restore the master db, the restoration process stops and the SQL server stops. Is there any process I left out? I think the execution of single user mode is incomplete. Please help.
Actually, I found exactly the same problem was posted year ago, but there was no solution. Any information would be greatly appreciated.
At the moment some of the databases on my systems drop themseleves into single user mode over the weekend. Has any one expierienced this or does any one know how I could monitor it to find out how it is doing it.
Hello, I have an SMS 2.0 Site in which we ae using SQL Server 6.5. I am having major problems setting server in Single-User Moder and running automated SQL Utilities because of multiple connections at one time. Does anyone know how to FORCE SQL into Single-User Mode. Any help would be greatly appriciated. Thank You, George Aviles gaviles@na2.us.ml.com
I have been trying with no success to start my SQL Server in single user mode and login.
Here's the scenario:
I've got a one node cluster with SQL Server 2000 installed. I changed the startup parameters of SQL Server to reflect the following:
-c -f -m
I have disabled SQL Server Agent so it doesn't start when I bring SQL Server online. But when I do bring SQL Server online, I'm not able to connect at all. I keep getting the "only one administrator can log on at one time".
There is no one else trying to log on and SQL Agent is disabled.
What is the scoop? Has anyone seen this? And if so, how did you address it? I'm trying to restore master and need to get this donesooner rather than later.
Hi I have heard abt starting the SQL Server in Single User Mode,
1) Can any one tell my why would I have to do that , Can some one please give me real time examples as to why he/she started the SQL Server in Single User Mode
2) I have currently got 20 users online,howe can I start the SQL in single user mode.
I know it's completely not advised, but I have to do this: I need to make some updates to a system table. In short, I have some databases that were secondary databases in a log shipping scenario. I needed to recover those, so now they're not in STANDBY. All I want to do is reset those back to STANDBY so I don't have to completely start from scratch. One of the databases is 500GB and I do not feel like having to wait for another full restore of that database.
I have DAC enabled on the server in question. Whenever I try to connect, it says DAC is NOT enabled. Wrong!!! When I run this query: Code Snippetsp_configure 'remote admin connections', 1;GORECONFIGURE;GO The first statement runs fine. It says to RUN RECONFIGURE. I run reconfigure. I then get an error saying ad-hoc updates to system catalogs are not accepted. Huh?????? So I start the SQL Server in Single User Mode. I closed every single connection. Nothing else is trying to connect. When I try to connect to the instance via SSMS using ADMIN:<instance name>, I get an error saying I can't connect because only one adminstrator is allowed to connect while in single user mode. I do not get what the H-E-double-hockey-sticks is going on! I'm set up as a sysadmin on this box... I don't get it...
I have been trying with no success to start my SQL Server in single user mode and login.
Here's the scenario:
I've got a one node cluster with SQL Server 2000 installed. I changed the startup parameters of SQL Server to reflect the following:
-c -f -m
I have disabled SQL Server Agent so it doesn't start when I bring SQL Server online. But when I do bring SQL Server online, I'm not able to connect at all. I keep getting the "only one administrator can log on at one time".
There is no one else trying to log on and SQL Agent is disabled.
What is the scoop? Has anyone seen this? And if so, how did you address it? I'm trying to restore master and need to get this done sooner rather than later.
Ever since installing SQL service pack2 I've run into a very strange error.
Just about every day, 1 or more databases just switch themselves into Single-User Mode. Since these databases form the back-end of websites, this is obviously a serious problem. No-one can get in. I've checked out the MS knowledge base, and books online, but I can't find a thing about this behavior.
Has anybody else run into this? - Does anybody know where I could begin to look to trace this error down? Its been going on for more than a week and I'm still at square one.
Any help would be apppreciated.
------------------------ Windows NT 4 - SP6a SQL 7 - Sp2 ------------------------
Dear All, I have some user databases that go into single user mode for no apparent reason. Is there any reason that SQL Server 7 would set a database in single user mode by itself? NB They are not being set single user by anyone else here, they would not know how.
I been reading that DBCC checkdb should be run in single user mode. While microsoft says to run DBCC checkalloc in single user mode. Does running checkdb in single user mode matter, and should I be running checkdb in single user mode?
In order to automate regular maintenance on SQL Server (6.5 SP3) I'm trying to automate the process of putting the database into single user mode without having to stop/start the process.
The sp_dboption won't allow single user mode while users are still connected to the database, so I was trying the following script:
DECLARE @to_kill int
/* Declare Cursor */ DECLARE spid_cursor CURSOR FOR SELECT spid FROM sysprocesses WHERE dbid = 6
/* Open Cursor */ OPEN spid_cursor
/* Loop Through All Table Names */ FETCH NEXT FROM spid_cursor INTO @to_kill WHILE (@@fetch_status <> -1) BEGIN IF (@@fetch_status <> -2) BEGIN KILL @to_kill END FETCH NEXT FROM spid_cursor INTO @to_kill END
This, however gives a sytax error for the KILL command (it seems that KILL will not allow a parameter to be passed). I've tried making the @to_kill variable smallint, int, and varchar without any success.
Is there any automated way way to kill user connections without cycling the server?
I have a database in development in SQL Server 6.5 that needs to be occasionally deleted and rebuilt from a script when table structures are changed. I found that when very complex queries were performed, the 2 MB default size of tempdb filled up and returned errors, so I went to the Enterprise Manager to expand tempdb, learned that I had to first expand a device to expand tempdb into, and foolishly chose to expand tempdb into the same device space used by my application, instead of into one of the system databases. Then when I tried to delete the device in preparation for its rebuild, the Enterprise Manager responded with an error message saying the device can't be deleted because it contains system tables. The answer (apparently) is to move tempdb into RAM, but when I tried to do that, I got an error message saying I couldn't unless I was in single-user mode. So I put it in single-user mode, and now I can't get to the server at all through the Enterprise Manager because an error message pops up saying "A connection could not be established to SERVER3 - [SQL Server]. Database 'tempdb' is already open and can only have one user at a time."
So now I'm really stuck. There are no other connections or users accessing the database. How can I get back in? No command-line switches seem to make any difference (-c, -f).
I have a database that got set into single user mode. Unsure the reason or who might opened it. I am trying to reset it, but I am having problems. I am trying the following from http://www.kodyaz.com/articles/alter-single-user-multi-user-mode.aspx to kill the connections. So I can then switch it back to multiple users. DECLARE @DatabaseName nvarchar(50)DECLARE @SPId intSET @DatabaseName = N'Works'DECLARE my_cursor CURSOR FAST_FORWARD FOR SELECT SPId FROM MASTER..SysProcesses WHERE DBId = DB_ID(@DatabaseName) AND SPId <> @@SPIdOPEN my_cursor FETCH NEXT FROM my_cursor INTO @SPIdWHILE @@FETCH_STATUS = 0BEGINKILL @SPIdFETCH NEXT FROM my_cursor INTO @SPIdENDCLOSE my_cursor DEALLOCATE my_cursor Which gives me the following error message when ran. Msg 170, Level 15, State 1, Line 13 Line 13: Incorrect syntax near '@SPId'.
Our company has several SQL Server 7 databases. One of them has now on two occassions, set itself to 'Single User' mode. I am completely baffled as to what can be causing it.
There's no jobs set up to do it. There's no stored procedures programmed to do it. The SQL Server Log shows that a DBCC CHECKDB ran at 18:00:37.73 and that users attempted to and couldn't log in from 18:01:01.95 onwards. There is a maintenance plan set to run every two hours that does a backup, integrity checks, so it fired the CHECKDB.
while recovering it prompts a message 'the system administrator must have exclusive use of database to run the restore operation'. now,how to do it? how to make database to use exclusively when it is connected to an web based aplication. thanks.