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What are the advantages of database management system over file based system?
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No data redundancy: Only one copy of data is maintained

Concurrent Access: Multiple users can access / exchange data simultaneously

increased data integrity: rules and restrictions can be applied to make sure data is always correct

consistency of data: data is always correct and valid.

structured and described format of data: format of data is fixed; i.e TABLE format

enhanced security: there are various levels of data. For example, only specific data is displayed for teachers and only specific data is displayed for students.

backup and restore

data persistence: data once saved and remains permanent.

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