Components of a DBMS

•Buffer management
•Stored data manager
•DDL compiler
•Interactive query interface
•Query compiler
• Query optimizer
• Pre-compiler
•Runtime database processor
•System catalog
•Concurrency control system
•Backup and recovery system

Advantages of using the DBMS approch

•Data independence.
•Efficient data access.
•Data integrity and security.
•Data administration.
•Concurrent access and crash recovery.
•Reduced application development time.

Users of the database

•Database Administrator (DBA)
•Database Designers
•End Users
•System Analysts, Application Programmers, Software Engineers

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