Introduction to Database-management system (DBMS)

Introduction to Database-management system (DBMS)




Databases are used to store, manipulate, and retrieve data in nearly every type of organization including business, healthcare, education, government, and libraries. Database technology is routinely used by individuals on personal computers, by work group accessing databases on network servers.

Although the future of databases is assured, much work remains to be done. Many organizations have a proliferation of incompatible databases that were developed to meet immediate needs, rather than based on a planned strategy or a well-managed evolution. New skills are required to design data warehouses, and there is a critical shortage of skills in areas such as database analysis, database design, and data administration.
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Database: An organized collection of logically related data. A database may be of any size complexity.

Information: Data that have been processed in such a way as to increase the knowledge of the person who uses the data.

Data: F acts, text, graphics, images, sound and video segments that have meaning in the users environment.


A Database-management system (DBMS) consists of a collection of interrelated data and a set of programs to access those data. The collection of data, usually referred to as the database, contains information about one particular enterprise.

The primary goal of a DBMS is to provide an environment that is both convenient and efficient to use in retrieving and storing database information. Database systems are designed to manage large bodies of information.

The management of data involves both the definition of structures for the storage of information and the provision of mechanisms for the manipulation of information.

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