Difference between logical data indepence and physical data independence?
[Edit]

Logical Data Independence:
Logical data independence is the ability to modify the conceptual schema without having alteration in external schemas or application programs. Alterations in the conceptual schema may include addition or deletion of fresh entities, attributes or relationships and should be possible without having alteration to existing external schemas or having to rewrite application programs.


Physical Data Independence:
Physical data independence is the ability to modify the inner schema without having alteration to the conceptual schemas or application programs. Alteration in the internal schema might include.
* Using new storage devices.
* Using different data structures.
* Switching from one access method to another.
* Using different file organizations or storage structures.
* Modifying indexes.

Improve Answer Discuss the question "Difference between logical data indepence and physical data independence?" Watch Question

First answer by ID3411997828. Last edit by ID3411997828. Question popularity: 7 [recommend question]

Research your answer:

Answers.com > Wiki Answers > Categories > Technology > Computers > Computer Databases > Difference between logical data indepence and physical data independence?

Our contributors said this page should be displayed for the questions below. (Where do these come from)
If any of these are not a genuine rephrasing of the question, please help out and edit these alternates.
Difference of data?  Logical data independence?  Logical data in a database?  Logical data independences?  What Logical data independence?  What is Physical data security?  What is the logical view of data?  Logical physical data independency?  Conceptual Logical or Physical data?  Digram of Physical Data Independence?  Logical view and physical view of data?  Physical and logical data independence?  Logical independence and data independence?  What is logical data independence in database?  Physical logical data independence difference?  Define logical and physical data independence?  What is Example of physical data independence?  3 differences bw physical logical data independence?  What is meant by logical reading while copying data?  What does physical data independence mean in a DBMS?