Database Management System (DBMS) is a software for storing and retrieving users' data considering appropriate security measures. It consists of a group of programs that manipulate the database. The DBMS accepts requests for data from an application and instructs the operating system to provide specific data. A database is a collection of related data that represents some aspect of the real world. A database system is built with data for a certain task. This hand written notes are very useful for all the students like BCA, MCA, B.Sc, B.Tech CSE, M.Tech all these students. Notes of DBMS is very beneficial for students. This notes are specially designed for students to score good marks in their exams. You can all read these notes well by downloading PDF so that all of you can do well in the exam. Pass with a good score in exam.