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Which database object does not physically exist?
A view database object does not physically exist.
what is un ordered and ordered file managment?
These are the binary operations; i.e., each is applied to two relations or sets. These two relations can be union compatible excluding in case of Cartesian product. Two relations R
Company XYZ is an advertising company. It has its own website but the search facilities offered are not reliable. The company is willing to invest to acquire new machines and sof
Explain the Natural join Natural join is a binary operator which is written as (R* S) in which R and S are relations. The effect of the natural join is the set of all combinati
The Proliferation of Object-Oriented Methods The first few years of the 1990s saw blossoming of around fifty various object oriented methods. This proliferation is a sign of g
can you resolve this for me please? Database Management Systems Homework 1 The following relations are given (primary keys are underlined): PLAY-ACTOR(AId, Name, Nationality, Birt
What is known as a search key? An attribute or set of attributes used to look up records in a file is known as a search key.
What are the requirements to ensure the objectives of file management principle is realized?
The advantages of a database management system (DBMS) include :- Data integrity and elimination of duplication.
under what condition log based recovery is feasible?
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