What is Use of Attach file in Open Database Window ?

Hi all,

I was wondering from a long time for the use of Attach File in Open Database Window. I don't know you have noticed it ever or not.

Curiously i pressed F1 to find out use of it and here is what i got -

"If you want to attach and open a detached database that consists of a single data file, excluding the transaction log file, then you must enter the complete path and file name of the database in the Attach File field. This file typically has the .mdf file name extension. You can give this single file database any name by entering it in the Database Name field on the General tab. If no transaction log file exists with the data file, it is automatically created when you attach the data file. The database file is attached when you open it."

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