Define the term database, Database Management System

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QUESTION

(a)(i) Define the term database.

(ii) How is it different from a database management system?

(b) What is the difference between an entity and an attribute?

(c) What is the difference between a data definition language (DDL) and a data manipulation language (DML)?

(d) Compare and contrast using diagrams between a hierarchical database model and a network models

(e) Give one advantage and one disadvantage of a hierarchical database model.


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