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What is the difference between DBMS and file management?

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2010-11-12 11:33:11
2010-11-12 11:33:11

When a computer user wants to store data electronically they must do so by placing data in files. Files are stored in specific locations on the hard disk (directories). The user can create new files to place data in, delete a file that contains data, rename the file, etc -- all known as file management; a function provided by the Operating System (OS).

If the user wishes to perform some operation on the data he has placed in the file, such as viewing a list of his friends that celebrate their birthday in June, he has to scroll through all the data by himself in order to see the data he is interested in. Moreover, he has to know where he put the files that contain the data, and if there are multiple files he has to remember to go through each one of them.

A Database Management System is intended to remove this burden of manually locating data, and having to scroll through it by allowing the user to create a logical structure for the data beforehand, and then allowing the user to place the data in the database that the DBMS is managing. In this way the DBMS abstracts away the physical concerns of organising files, and provides the user with a logical view of the data.

Note, that the DBMS will still -- behind the scenes though -- place the data in files on the hard-disk.

Database is multiuser and provides utilization of resources whereas in file management there is no utilization of resources.

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In File System, files are used to store data while, collections of databases are utilized for the storage of data in DBMS. Although File System and DBMS are two ways of managing data, DBMS clearly has many advantages over File Systems. Typically when using a File System, most tasks such as storage, retrieval and search are done manually and it is quite tedious whereas a DBMS will provide automated methods to complete these tasks. Because of this reason, using a File System will lead to problems like data integrity, data inconsistency and data security, but these problems could be avoided by using a DBMS. Unlike File System, DBMS are efficient because reading line by line is not required and certain control mechanisms are in place.

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"http://wiki.answers.com/Q/What_is_the_difference_between_a_file_manager_and_a_database-management_system"

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