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What is serializability? Explain its types?
The data base system must control concurrent implementation of transactions, to ensure that the data base state remains consistent. There are dissimilar forms of schedule equivalence they lead to the notions of
a) Conflict serializability
B) View serializability
Conflict serializability
We say that ii and I j conflict if they are operations by dissimilar transaction on the similar data item and at least one of these instruction is a write operations
WHAT IS SQL
how to implement hyrise in C plus plus
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Explain the components of Database System in details.
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
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