Introduction of Database Managemnt System

A database management system is a collection of interrelated data and set of programs to acc those data. This is a collection of related data with an implicit meaning and hence is database. The collection of data usually referred to as the database contains information relevant to a project. The primary goal of a DBMS is to give a way to store and retrieve database information that is both convenient and efficient. By data we mean known facts that can be recorded and that have unspoken denotation. For example, consider the names telephone number, and addresses of the people you know. You have recorded this data in an indexed address book, or you can store it on a diskette using a personal computer and software such as DBAMS IV or V, MSA Access or Excel.

Database systems are designed to manage large bodies of information. This data involves both significant structures for storage of information and given that mechanisms for exploitation of information. In addition the database systems must ensure the safety of the stored information, even though system crashes or attempts at unofficial access. If data are to be shared numerous users, the system must avoid possible inconsistent result.