I found lots of sites telling me how to put a database into single user mode, but how can I determine what mode a database is currently in? Re: Determine if database is in single or multi user mode. The database is in single-user mode, and a user is currently connected to it. The database is in single-user mode, and a user is currently connected to it.Msg 5069, Level 16, State 1, Server ACNCMPRI, Line 1. The system stored procedure sp_who can be used to detect the active connection in SQL Server: (See the step image) To kill sessions, you can use the kill command. In the ETL I need to rename a database, so I first put the database into single-user mode by issuing the command: ALTER DATABASE foobar SET SINGLE_USER WITH ROLLBACK 30 The database then goes into single-user mode, and after the renaming occurs, I attempt to put the same database back into multi-user mode: I logged in through DAC. Switch the Database Back to Multi-User I've tried resetting the server, and I've even tried resetting my computer but with every attempt I make to do anything to it SQL Server insists that there is some connection already open to it somewhere. Jul 29, 2010 06:50 AM | eralper | LINK. 1. 1447 Posts. If you have a named instance then use the '-S' parameter with full instance name. 4. Sometimes, it is not possible to change to emergency mode to single user mode because there are several active connections. Getting out of single user mode. 3. Databases are set to single-user mode because so that only when the user can access the database at a time. the post is for case when two or more people are using or executing a query in a single database at the same time, sql is such that u cannot delete a database when it is in use, u have to set the db to single user mode from the multi user mode so that u wil be able to delete it :) Imagine a busy production server with about thirty databases. Lucky for me, I was able to use the SQL Management console with the Administrator account. The '-E' switch is used for a trusted connection. Sometimes, brute force is the best way to get something done. I tried killing a SPID (sp_who2) that I thought had the lock but could not get access to the database and I could not bring the database to muti-user mode. In order to do that, the database should be turned into single user mode. Reply; eralper Contributor. Database ‘SUSDB’ is already open and can only have one user at a time. This is because some other process is currently using the one session the DB is allowing. ALTER DATABASE database_name SET SINGLE_USER WITH ROLLBACK IMMEDIATE GO DBCC CHECKDB(database_name,REPAIR_ALLOW_DATA_LOSS) GO. Users must remember that they can face some data loss during this repairing process. You will have to find the process ID and KILL it. 2. I had a similar problem when the Query Tab for the single user got closed accidently. I've got a database in single user mode that I can't get out of single user mode. Changes to the state or options of database ‘SUSDB’ cannot be made at this time. Note: Before moving to the restoring process, The user has to put the SQL database in single-user mode. 6101 Points. Here are the steps to follow to Restore SQL database from backups. I ran a script to update one of my databases the other day and it seemed to locked my SQL DB into a single user mode. After that, I was not able to access the database instance using SQL Management console with my account. ALTER DATABASE statement failed. 1. If you are a Windows local Administrator on the machine, you will be granted SQL Server SYSADMIN rights when you connect to SQL Server in single user mode. I logged on as sa, but I could not bring the database to muti-user mode. Know-How to Restore SQL Database From Backups In Single User Mode . Somehow, during an administrative task, one of the databases ended up in single user mode. 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