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Chapter 1 Introduction CMPT-354-Han-95.3 Lecture Notes September 10, 1995 1.0 Database Management Systems 1. A database management system (DBMS), or simply a database system (DBS), consists of A collection of interrelated and persistent data (usually referred to as the database (DB)). A set of application programs used to access, update and manage that data (which form the data management system (MS)). 2. The goal of a DBMS is to provide an environment that is both convenient and e cient to use in Retrieving information from the database. Storing information into the database. 3. Databases are usually designed to manage large bodies of information. This involves De nition of structures for information storage (data modeling). Provision of mechanisms for the manipulation of information ( le and systems structure, query process- ing). Providing for the safety of information in the database (crash recovery and security). Concurrency control if the system is shared by user...