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Which database level is closest to the users?
External database level is closest to the users.
What are the uses of functional dependencies? To test relations to see whether they are legal under a given set of functional dependencies. To state constraints on the set
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limitations and benefits in database tecknowlagy
Rearrange Classes and Operations Sometimes, the similar operation is defined across different classes and can easily be inherited from a familiar ancestor, but more often oper
Give an example of operations from the State Actions and Activities. For instance, in bank the activity verify account code and verify password
explain thee diffrent types of data models
Define the phases of two phase locking protocol Growing phase: a transaction may get locks but not release any lock. Shrinking phase: a transaction might be release locks bu
What are the various states through which a transaction passes through in its lifetime? Briefly discuss all the events that causes transition from one state to another. Ans:
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
Explain Network Model in DBMS? Network Model - It was formalised within the late year of 1960s through the Database Task Group of the Conference on Data System Language (DBTG
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