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what does glory be mean
what is database management system? & why it is required?
What is the use of Union and intersection operation? Union: The result of this operation contains all tuples that are either in r1 or in r2 or in both r1 and r2.Duplicate tuple
Storage Of Database On Hard Disks At this point, it is worthwhile to note the difference among the terms file Organisation and the access method. A file organisation shows to t
Data independence seems that "the application is independent of the access strategy and storage structure of data". In other words, the ability to change the schema definition in o
What is authorization graph? Passing of authorization from single user to another can be shown by an authorization graph.
how to calculate frequency count of algorithm
what is natural join?
A software contract and consultancy firm maintains details of all the various projects in which its employees are currently involved. These details comprise: Employee Numbe
For the relations R and S given below: R S A B C 1 4 7 2 5 8 3 6 9
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