May 2024
Intermediate to advanced
325 pages
12h 2m
English
Content preview from Distributed Database Systems, 1st Edition by Chhanda Ray
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Distributed Database Systems
12.2 View Management
A view can be defi ned as a virtual relation or table that is derived from one or more base relations.
A view does not necessarily exist in the database as a stored set of data values; only view defi ni-
tions are stored in the database. When a DBMS encounters a reference to a view, it can be resolved
in two different ways. One approach is to look up the defi nition of the view and translate the
defi nition into an equivalent request against the source tables of the view, and then perform that
request. This process is known as view resolution. Another alternative approach stores the view
as ...
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