The advantages of database system over
file system:-
(i) In file system, various file are created in
various structure and programmers may written in several programming language.
Moreover the same information may be duplicated in several places. But in
database system, Data redundancy and inconsistency problems are removed.
(ii) The database system provides an environment
that is both convenient and efficient to use in retrieving and storing database
information.
(iii) It is normal that not every user of the
database should be able to access all the data. But as file processing system
an adhoc manner, enforcing such security constraints is difficult.
(iv) The overall performance of the system is
improved and a faster response time is possible many systems allow multiuser to
update the data simultaneously. Database system maintains concurrent processing
control of a multi-user database.
Five responsibilities of database
management system-
(i) Interaction with
the file Manager
(ii) Integrity
enforcement
(iii) Security
enforcement
(iv) Backup and
Recovery
(v) Concurrency control
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