waht is meant data independence?

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waht is meant data independence?..

Answer / siva k mahen

The ability to change the organization of the database
itself without changing the application software.

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waht is meant data independence?..

Answer / mahesh (ezeesoft)

If you change internal low level abstraction database then they dont affect on higl level abstraction.
There are two types of data independance:
1) Physical data independance:
If you change physical level of data then they dont affect on logical level.

2) Logical data independance:
If you change logical level of data then they dont affect on view level

Summary: The ability to modify the schema defination in one level should not affect the schema defination in next higher level.

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