International Journal of Computer Applications
Computing technology has significantly influenced lives, business data processing as well as scientific computing. In the beginning, computer professionals were concerned with designing files to store data so that information could be explored for business and other requirements. Storage size and speed of accessing the data were the limitations. Then the era of database systems simplified to storage the data. Responsibility like declarative aspects of programs was passed on to the database administrators and the users were facilitated to queries in simpler languages such as SQL. On the hardware side, the storage cost and machine cost have been reduced to affordable amount by the time. Organizations are now accumulating a large amount of data in archival files.