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Why is need for the multiple access paths?
Give the general form of SQL query? Select A1, A2............., An From R1, R2..............., Rm Where P
Creating views with Read only option : In the view definition this option is used to make sure that no DML operations can be done on the view.
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What is recursive closure? Why is it not possible to describe this operation in relational algebra? Recursive closure is applied to recursive relationship. An instance of rec
1. Determine the set of minimal functional dependencies for the following data. The local bakery, Happy Cakes, needs your help designing a database that will support a kiosk in
Given the following relations Vehicle (Reg_no, make, colour) Person(eno, name, address) Owner(eno, reg_no) Write expressions in the relational algebra to answer the following
List the set operations of SQL? 1) Union 2) Intersect operation 3) The except operation
what problems are raised by the database? why is it so controversial? why is data quality an issue?
Describe Participation Constraints? Participation Constraints - The participation constraint exacts whether the existence of an entity depends on its being related to another
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