Question

MS SQL Server 2005 - How to USE single user mode

Asked by: krinpit

Hi all,

Hopefully this is a straightforward question.

I need to execute "DBCC CHECKDB" on my database, but to do so, I must be in single-user mode.

I know how to start the database in singleuser mode from the command line by typing "sqlservr -m", but when I try to access the database using SQL Server Management Studio, but it gives me the message "Login failed for user 'DOMAINNAME\administrator' Reason: Server is in single user mode. Only one administrator can connect at this time. (Microsoft SQL Server, Error: 18461)"

Any ideas on how I can go about executing DBCC?

Thanks

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Asked On
2007-01-18 at 04:42:32ID22127202
Tags

user

,

single

,

sql

,

mode

,

server

Topic

Databases Miscellaneous

Participating Experts
1
Points
125
Comments
4

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Answers

 

by: fostejoPosted on 2007-01-18 at 05:02:22ID: 18340377

krinpit,

It's likely that the SQL Server Agent is using the only available connection, as described in http://msdn2.microsoft.com/en-us/library/ms188236.aspx

cheers,

 

by: krinpitPosted on 2007-01-18 at 05:05:50ID: 18340396

No, the SQL server agent service is stopped.

Even when I change the startup parameters and start SQL server from Management Studio, I get the same error.

Thanks,

 

by: fostejoPosted on 2007-01-18 at 05:23:27ID: 18340514

krinpit,

Have a look at http://blogs.msdn.com/sql_protocols/archive/2006/02/21/536201.aspx - in particular, the setting of the 'State' value in the error message as this may help to pin the problem down further.

Also, have you checked for other services/applications/users which may be connecting to the database prior to you without your knowledge?

cheers,

 

by: krinpitPosted on 2007-01-18 at 07:50:03ID: 18341802

Hi fostejo,

It is a standalone testbed, so no other clients are connecting in to it.

It looks like I've found a solution though.

If I execute the following command before my DBCC command, it seems to work

sp_dboption 'myDataBaseName', single, true

Thanks for your help - I'll give you the points.

20120131-EE-VQP-002

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