<p>•The book covers fundamental concepts such as data information metadata and database. It explains the differences between these terms and how they are interconnected.</p><p>•The book explores the characteristics of a database system and its benefits such as data independence data security and efficient data access.</p><p>•The book covers the entity-relationship data model which is a widely used modelling technique for designing relational databases. It explains the concepts of entities attributes and relationships.</p><p>•The book describes the importance of maintaining data integrity in a database system and explains how to enforce integrity rules and constraints.</p><p>•The book covers ER modelling explains how to create an ER diagram and explores the concept of functional dependencies and how they are used in database design.</p><p>•The book covers SQL's data manipulation language which includes statements used for inserting updating and deleting data in a database.</p><p>•This book is intended for computer science majors and the study matter lays special emphasis on designs issues relational calculus mathematical models and relational algebra.</p>