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(a) Why did SAP introduce the extended star schema?
WHY SHOULD NULL IN A RELATION BE AVOID AS possible?
Attributes attached to an entity can be of various types. Simple The attribute that cannot be further separated into smaller parts and shows the basic meaning is known as a
What is meant by mean time to failure? The mean time to failure is the amount of time that the system could run continuously without failure.
Question 1: (a) Explain the legal meaning of :- (i) Computer Service Person (ii) Data holding (b) Explain how the law ensures Data protection and Security. Qu
er diagram on cosmetics.
what is un ordered and ordered file managment?
Distributed Database Management System
Given the following relations TRAIN (NAME, START, DEST) TICKET (PNRNO., START, DEST, FARE) PASSENGER (NAME, ADDRESS, PNRNO.) Write SQL expressions for the following queries: No
For every n-ary relationship type R where n>2, we make a new table S to represent R. We contain as foreign key attributes in s the primary keys of the relations that show the parti
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