What are the functions of a database administrator

There are four types of users in DBMS:

(i) Application programmers or ordinary users

(ii) End users

(iii) Database Administrator (DBA)

(iv) System Analyst

(i) Application programmers or ordinary users: These users write application programs to interact with the database. Application programs can be written in some programming Language such a COBOL, PL/I, C++, JAVA or some higher level fourth generation language. Such programs access the database by issuing the appropriate request, typically a SQL statement to DBMS.

(ii) End users: End users are the users, who use the applications developed. End users need not know about the working, database design the access mechanism etc.

(a) Direct users

(b) Indirect users

(iii) Database Administrator (DBA): Database Administrator (DBA) is the person which makes the strategic and policy decisions regarding the data of the enterprise. DBA is responsible for overall control of the system at a technical level.

(iv) System Analyst: System Analyst determines the requirement of end users; system Analyst plays a major role in database design.