Thursday 13 August 2015

Data,Database,DBMS and Database System

A data can be said as piece of information such as name of your school or college.

A database is a collection of related data organized in a way that data can be easily accessed,managed and updated.Database is actually a place where related information is stored and various operations can be performed on it.

A DBMS is software or tool that allows creation,definition and manipulation of database .In other words we can say it is used to perform various operation on data in database.
DBMS also provides  protection and security to database.
some examples of popular DBMS are as follows:MySql,Oracle,Sybase,MicrosoftAccess,IBM DB2,etc.

Database System :- It consist of four components:

Database System= User + Database Application + DBMS + Database

Users - they can be DBA(database adminstrator),System Developer and end user.

Database Application - It can be categorize into personal,departmental,enterprise and internal.

DBMS - software or tool that allows user to define ,create and manage database access.Ex: Mysql,Oracle,etc

Database - Collection of data or in other words we can say a place where data is stored.

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