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Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
Define an operator that a Relational Algebra does not have Ans: Relational Algebra does not have Aggregation operators.
as a customer service employee explain five measures you would recommend to make even a displeased students patronize the school canteen
Define Fifth Normal form is concerned with Ans : Fifth Normal form is concerned with Join dependency.
Design a database for an airline.The database must keep track of customers and their reservations,flights and their status, seat assignment on individual flights and, the schedule
Can you assist me in Database management system? I need help in my courses, please email me at and get back me soon...
external and internal mapping with examples
Eliminate Repeating Groups The problem is, "Find out the list of employees, who knows DB2". For this problem we require to perform an awkward scan of the list looking for re
Explain forms based and graphical interface? Forms based and graphical interface: graphical user interface (GUI) is a kind of user interface which permits people to interact
What is vertical fragmentation? Vertical fragmentation divides the relation by decomposing the scheme R of relation r.
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