What happens when you detach a database in SQL Server?

What does detach database do in SQL Server?

Detaching a database removes it from the instance of SQL Server but leaves the database intact within its data files and transaction log files. These files can then be used to attach the database to any instance of SQL Server, including the server from which the database was detached.

What is the difference between detach and take offline?

The difference is that detach deletes database metadata from SQL Server i.e. database file information, status information and all the other details that we see in sys. databases view. On the other hand taking database offline retains database metadata in SQL server system views.

How do I detach a database in SQL Server?

Detach a database1In SQL Server Management Studio Object Explorer, connect to the instance of the SQL Server Database Engine and then expand the instance.2Expand Databases, and select the name of the user database you want to detach.3Right-click the database name, point to Tasks, and then select Detach.Detach a database - SQL Server | Microsoft Docs

What is attach detach?

As verbs the difference between detach and attach is that detach is to take apart from; to take off while attach is (obsolete|legal) to arrest, seize.