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Which database level is closest to the users?
External database level is closest to the users.
Design a gennalization and specialization hierarchy for an automobile sales company
How does the system cope up with a record crash when recovery is going on after the first crash? Ans: In a system the undo and redo operations are needed to be idempotent to c
Define the concept of Object Diagram An object diagram shows a set of the objects and their relationships with each other at a point of time. In a static view, object diagram
explain exhaustively the problems associated with ER diagrams. include illustrations in your answer
Prove that a relation which is 4NF must be BCNF. Ans Let R be in 4NF. Suppose it is not in BCNF. Hence, there exists an FD X→Y in R such that x is not a super key. Although
What are the Overlapping elements Overlapping elements can be found by scanning all the elements in front of deleted element in priority list for the sheet and comparing them
Benefits and limitations
Project Description: I would like to get a database of a website which has clients email name and phone number. If you are able to get information from a website, by entering
(a) Why did SAP introduce the extended star schema?
Fifth Normal Form (5NF) These relations still have a difficulty. While defining the 4NF we mentioned that all the attributes depend upon each other. Whereas creating the two ta
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