There are different types of user that play different roles in a database environment. Following is a brief description of these users: (1) Application Programmers: Application programmer is the person who is responsible for implementing the required functionality of database for the end user. Application programmer works according to the specification provided by the system analyst. (2) End Users: ... 

The range of database application is as follows: (1) Personal Computer Database: Personal computer databases are specially designed for single user. The user may be using stand-alone desktop computer or laptop. The representatives of a medical company may use laptop computers when working in the market. This computer may use a simple database application in which the records of customers are stored....