Database is the area which is required and demanded in every either in research or in software industry. It offers a way to store data electronically in an efficient way with the huge reliability and consistency. The book includes the core concepts related to database and how these concepts helps in maintaining data in efficient way. The book starts from the discussion of database management system and move towards the concepts include Normalization, ER Model, Relational Model and so forth. It also includes the latest technologies of the database.