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HOW TO SOLVE THE LP Problems by simplex method?z=x1+-3x2+2x3
Question: In relation to distributed database answer the following questions: (i) Give a brief definition of distributed database. Support your answer with an appropriate di
What are the aggregate objects in the data dictionary? Views Match codes Lock objects.
Define Shared locks? Ans: Shared lock: Throughout concurrent execution of transactions, earlier than a transaction can access a data item, it has to obtain a lock on it. Now he
what is relationship inheritance and attribute inheritance
explain external view
what is RDBMS? how it works? good example.
what is cascading rollback
Explain the rules for creating a labelled precedence graph for testing view serializability. Ans: A schedule S is view serializable if it is view equivalent to a ser
a need some real life examples of database management systems three level of ANSI SPARC architecture life teacher and student ,company and employee or for NGO etc.
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