Database Management System - Short Question Answer

Here in this section of Database Management System Short Questions Answers, We have listed out some of the important Short Questions with Answers which will help students to answer it correctly in their University Written Exam.

1. What is a data model? List the types of data model used?

A database model is the theoretical foundation of a database and fundamentally determines in which manner data can be stored, organized, and manipulated in a database system.

It thereby defines the infrastructure offered by a particular database system. The most popular example of a database model is the relational model.

Types of data model used

  • Hierarchical model
  • Network model
  • Relational model
  • Entity-relationship
  • Object-relational model
  • Object model
2. Define Data?

It refers to extracting or “mining” knowledge from large amount of data. Data mining is a process of discovering interesting knowledge from large amounts of data stored either, in database, data warehouse, or other information repositories