Now a days, database is required in every area and application. Hence, management of such database is an inevitable task. Database management system is omnipresent. SQL (Structure Query Language) is a heart of database management system. This book refers how to use and write SQL queries with the help of simple but effective syntax. This book is majorly aimed for beginners but even professional can use it. Practicals are selected according to various aspects of DBMS. All the questions are given with respective query and its output. Theory of every concept is given in the beginning of practicals. It will be a handy book for practitioners.