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Let us now talk about the relational operations: SELECT The select operation is used to select few specific record from the database based on different criteria, This is a un
can you please explain with the help of suitable example the difference between conflict equivalence and conflict serializability?
What is meant by Physical blocks? The input and output operations are completed in block units. The blocks residing on the disk are referred to as physical blocks.
explain participation constraints with examples
Sparse and Dense Indexes These indexes in principle are the similar as that of indexes used at the back of the book. The key facts of the indexes are: They are arranged
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:
QUESTION (a) Consider a car database consisting of car model, car make, car origin, Engine capacity, color, cost.
By using the delete operation some consisting records can be deleted from a relation. To delete some definite records from the database a condition is also specified based on which
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
what is stracture of dabms
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