Monday 21 December 2015

Data Management Technique

 Database
A database is a collection of interrelated data organized in specific forms in order to suit for specific applications. A database is maintained by some organization or enterprise for efficiently handling the tasks of their daily activities, called transactions. For example bank maintains a banking database for storing customer data, account data, loan data and many others. 
Data are stored in several files with minimum amount of redundancy among them. Data must be shared in nature in order to facilitate concurrent access and processing. There must be a overall centralized control of data in order to maintain safety, security and integrity of database. A database, therefore, can be characterized as follows:


  1. Repository of collection of interrelated data records or data files.
  2. Data in a database are organized for efficient storage, retrieval and processing (in relation to some application). Data in a database must be shared in nature in order to facilitate concurrent access and processing.
  3. Database provides a centralized control of data to its users.
  4. Database is designed to maintain a large volume of data efficiently and effectively.


Database Management System
                Software that handles the storage, retrieval, and updating of data in a computer system.





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