Wednesday, December 4, 2019

Paradigm shift - File system to DBMS

File System manages data using files in hard disk. Users are allowed to create, delete, and update the files according to their requirement.

The issues with file system are:
·    Redundancy of data: Data is said to be redundant if same data is copied at many places. If a student wants to change Phone number, he has to get it updated at various sections. Similarly, old records must be deleted from all sections representing that student.





These are the main reasons which made a shift from file system to DBMS.

Advantages of DBMS
 DBMS helps in efficient organization of data in database which has following advantages over typical file system:




    ·        Backup and Recovery mechanism: DBMS backup and recovery mechanism helps to avoid data            loss and data inconsistency in case of catastrophic failures. 

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