After opening a database, the program registers it in the list of the last used databases, which can be accessed from 'File | Database History…' menu. Except database names, the list contains also some connection parameters for the databases. The list is used each time when the program opens a database.

Any database from this list can be easily reopened by using the corresponding button or by double-clicking the appropriate record in the history. Opened databases from this list are marked with a tick.

You can copy database history or remove selected database from the list.

The list of the registered databases (along with their connection parameters and SQL windows) is saved to file exptizer.dat of the program's folder. Please consider this information when working with multiple instances of the program. When the program is restarting, the list is loaded from exptizer.dat into operating memory and used to open the previously opened databases.