from
The Free On-line Dictionary of Computing (8 July 2008)
database manager
The part of the database management system (DBMS) that handles
the organisation, storage and retrieval of the data. A
database manager may work with traditional programming
languages, such as COBOL and BASIC, or may work only with its
proprietary programming language. The terms database manager
and database management system are used interchangeably.
A database manager links two or more files together and is the
foundation for developing routine business systems. Contrast
with file manager, which works with only one file at a time
and is typically used interactively on a personal computer for
managing personal, independent files, such as name and address
lists.