The CURRENT command makes a database current.

A MDB can contain up to 1000 DBs, and any number of the 1000 DBs can be described as current and accessed at one time. Databases which cannot be accessed are described as non-current or deferred. CURRENT makes the specified DB current and includes it at position n in the current list of the MDB (where n is in the range 1 to 1000 inclusive).