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3NF Normal Form
A relation schema R is in 3NF if it is in 2NF and for each FD X A either of the following is true
In other words, if every non prime attribute is non-transitively related on primary key.
What is the full form of DDL? DDL is stand for Data Definition Language.
to develop elrctronic database from manual forms
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
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
In the architecture of a database system which external level used? In the architecture of a database system view external level used.
Define upgrade and downgrade? It gives a mechanism for conversion from shared lock to exclusive lock is called as upgrade. It gives a mechanism for conversion from exclusive
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1. Determine that the Checkpoints are a part of Ans: Checkpoints are a part of Recovery measures
design a generalization specialization hierarchy for a motor vehicle sales company. the company sells motorcycles, passenger cars, vens and buses.
Explain the function of input controls. Identify four types of input control and explain the function of each. Provide an example of a data integrity error that could occur i
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