Danian Day

-The book covers fundamental concepts such as data, information, metadata, and database. It explains the differences between these terms and how they are interconnected.-The book explores the characteristics of a database system and its benefits, such as data independence, data security, and efficient data access.-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.-The book describes the importance of maintaining data integrity in a database system and explains how to enforce integrity rules and constraints.-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.-The book covers SQL's data manipulation language, which includes statements used for inserting, updating, and deleting data in a database.-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.