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A database management system
(DBMS) is a collection of programs that enables users to create and maintain
database. The DBMS is a general purpose software system that facilitates the
process of defining, constructing, manipulating and sharing databases among
various users and applications. Defining a database specifying the database involves
specifying the data types, constraints and structures of the data to be stored
in the database. The descriptive information is also stored in the database in
the form database catalog or dictionary; it is called meta-data.
Manipulating the data includes
the querrying the database to retrieve the specific data. An application
program accesses the database by sending the qurries or requests for data to
DBMS.
The important function provided
by the DBMS includes protecting the database and maintain the database.
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