Error 924

Severity Level 14

Message Text

Database '%.*ls' is already open and can only have one user at a time.

Explanation

This error occurs when trying to access a database that is already in use by another user or session. Microsoft® SQL Server™ detected an attempt to access a database that is in single-user mode.

Action

Verify that the database in question is actually in single-user mode by executing this query (substitute your database name for <database>).

sp_helpdb <database>

GO

If the database is truly in single-user mode, the status result set column heading will list single user as the access mode.

To see what login is accessing the database, execute sp_who and scan the dbname result set column heading for the specified database.

If single-user mode privilege is a problem, contact your system administrator and ask to have the single-user mode database option set to multiuser. The system administrator can do so by executing sp_dboption from the master database, as shown here:

sp_dboption database, 'single user', false

See Also