Tuesday, December 27, 2011

Why software engineers is more popular compared to database ???

In my opinion , most of the people heard the 'engineers ' automatic will give a higher expectation ... They think engineers is a high status job, salary is higher than others ...
Do u all think about the database ??? Database is the most important subject in computer science ...As a database student , need to know the importance of database ...First , databases may be classified to four types: individual , company , distributed , commercial . The individual database is also called a microcomputer database . It is a collection of integrated files primarily used by just one person . Typically , the data and the DBMS are under the direct control of the user . They are stored either on the user 's hard-disk or on a LAN file server.
Companies , of course , create database for their own use. The company database may be stored on a central database server and managed by a database administrator . Users throughout the company have access to the database through their microcomputer linked to local or wide area networks.

Many times the data in a company is stored not in just one location but in server locations . It is made accessible through a variety of communication networks. The database , then , is a , distributed database . That is , not all the data in a database is physically located in one place . Typically , database servers on a client / server network provide the link between the data .

A commercial database is generally an enormous database that an organiAtion develops to cover particular subjects. It offers access to this database to the public or selected outside individuals for a fee. Sometimes commercial database are also called information utilities o data banks . An example is LexisNexis , which offers a variety of information -gathering and reporting services .

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