Entity set or entity type, Database Management System

A collection of a same kind of entities is known as an Entity Set or entity type.

Example:

For the COLLEGE database defines earlier objects of concern are Students, Faculty, Course and departments. The sets of all the students' entities form a entity set STUDENT. Likewise collection of all the courses creates an entity set COURSE.

Entity sets require not be disjoint. For example - an entity may be part of the entity set STUDENT, the entity set FACULTY, and the entity set PERSON.

Posted Date: 3/6/2013 6:00:16 AM | Location : United States







Related Discussions:- Entity set or entity type, Assignment Help, Ask Question on Entity set or entity type, Get Answer, Expert's Help, Entity set or entity type Discussions

Write discussion on Entity set or entity type
Your posts are moderated
Related Questions


lock and types of lock


List any eight applications of DBMS. a) Universities b) Airlines c) Banking d) Credit card transactions e) Tele communication f) Sales g)Finance h) Manufac

#questiontypes of keys examples..

Design an algorithm to implement operations  Each and every operation specified in the functional model could be formulated as an algorithm. The algorithm indicates how operat

What type of view of total database content? Data base content Conceptual view of total database contain.

1.Why we need data mining? Give an example to illustrate your answer. 2. Why data mining is considered as "misleading name"? 3. Distinguish the difference between database an

Write short notes on Schema diagram.  A database schema along with primary key and foreign key dependencies can be depicted pictorially by schema  diagram. Every relation appea