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A logical description of some portion of database that is required by a user to perform.

A logical description of some portion of database that is required by a user to perform.

A logical description of some portion of database that is required by a user to perform task is called as.
(a)  User View          (b)  Logical View                                    (c)  System            
(d)  Physical            (e)  Data View.

Johnson 02-Jan-2018

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