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Question: AirwaysCentre, an international airline booking company currently uses a relational database system for their operations, which includes the following relations: P
Suppose R is a relation with attributes A1, A2,..., An. As a function of n, tell how many superkeys R has, if: 1.1 The only key is A1. 1.2 The only key is A1 and A2. 1.3 The o
Design a gennalization and specialization hierarchy for an automobile sales company
Question: (a) One of the steps in the five-step problem-solving model is implementation. Implementation is considered a key step in the problem-solving model. A problem may be
Let us now talk about the relational operations: SELECT The select operation is used to select few specific record from the database based on different criteria, This is a un
what is natural join?
About Attribute inheritance
Can you assist me in Database management system? I need help in my courses, please email me at and get back me soon...
why data in an RDMS need to be normalised
What are the drawbacks of shadow-paging technique? The drawbacks of shadow paging is:- a) Commit Overhead b) Data fragmentation c) Garbage collection
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