How to Close Databases in Dynamics NAV
You may need to close the database from time to time.
To close a database
In the development environment, on the File menu, choose Database, and then choose Close.
You can use this function to close an open database, for example, before opening another database. However, it is not necessary to use it because all the data is saved and everything is closed correctly when you choose to open another database or exit the program.