Database ‘Database’ is already open and can only have one user at a time

This post gives one of the possible solution to the following error for SQL Server.

Most of the time we will be setting the database properties using SQL Server Management Studio, the GUI management interface. Somehow for some of the databases that have set to single user mode. When you right click those databases and choose properties, unfortunately, you have gotten the following error message.

Database ‘Database’ is already open and can only have one user at a time”

At this point of time, you have no way to set anything on that database because SQL Server Management Studio keep popping out the error and refuses to bring you to the Properties page.

This is the time you need to utilize your SQL Query. Use the follow statements to turn your database back to multi user mode then you should be fine.

Use WhateverDatabase

ALTER DATABASE WhateverDatabase

SET MULTI_USER

WITH ROLLBACK IMMEDIATE

Reference:

https://social.msdn.microsoft.com/Forums/sqlserver/en-US/77a83d0a-d49a-4b2d-9cd5-ee3c31836874/database-test-is-already-open-and-can-only-have-one-user-at-a-time?forum=sqlsecurity

About chanmingman

Since March 2011 Microsoft Live Spaces migrated to Wordpress (http://www.pcworld.com/article/206455/Microsoft_Live_Spaces_Moves_to_WordPress_An_FAQ.html) till now, I have is over 1 million viewers. This blog is about more than 50% telling you how to resolve error messages, especial for Microsoft products. The blog also has a lot of guidance teaching you how to get stated certain Microsoft technologies. The blog also uses as a help to keep my memory. The blog is never meant to give people consulting services or silver bullet solutions. It is a contribution to the community. Thanks for your support over the years. Ming Man is Microsoft MVP since year 2006. He is a software development manager for a multinational company. With 25 years of experience in the IT field, he has developed system using Clipper, COBOL, VB5, VB6, VB.NET, Java and C #. He has been using Visual Studio (.NET) since the Beta back in year 2000. He and the team have developed many projects using .NET platform such as SCM, and HR based applications. He is familiar with the N-Tier design of business application and is also an expert with database experience in MS SQL, Oracle and AS 400.
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