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Which is an advantage of view? The Advantages of view is Data security, Derived columns and Hiding of complex queries
Define Deadlock detection If a system does not employ a few protocols that make sure deadlock freedom, after that a detection and recovery scheme should be used. An algorithm
While sorting field groups we cannot use more than one key field False.
Horizontal Fragmentation- Horizontal fragmentation groups together the tuples in a relation that are collectively used by the main transactions. A horizontal fragment is produced b
Explain controlled redundancy? Controlled redundancy : The replication of data within the data warehouse for the purposes of improved data access or understand ability.
A database to track your progress in your college program will track your progress towards graduation! A database that has information containing the classes that you have taken, c
Design an algorithm to implement operations Each and every operation specified in the functional model could be formulated as an algorithm. The algorithm indicates how operat
What is trigger? Triggers are statements that are executed automatically by the system as the side effect of a modification to the database.
Wait-die" scheme : The idea is based on non-preventive method. It is based on a simple rule: If Ti requests a database resource that is held by T
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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