Connecting to a file or personal geodatabase from the Catalog window
A file geodatabase is a collection of files in a folder on disk. Personal geodatabases are stored in Microsoft Access databases (.mdb files), which are also stored in a folder on disk. Therefore, to connect to a file or personal geodatabase, you create a connection to the folder that contains the geodatabase.
Steps:
- 
 If you have not done so already, create a connection to the folder. To do this, click the Connect To Folder button 
 on the Standard toolbar. Alternatively, you can right-click the Folder Connections node and choose Connect Folder. 
 - Navigate to the location of the folder on the local or network computer.
 - 
Click OK to establish the folder connection that contains the file or personal geodatabase.
The folder connection is created under the Folder Connections node in the Catalog window.
 - Expand the folder connection.
 - Click the file or personal geodatabase to which you want to connect.
 
3/4/2014