database for online assignment system, Database Management System

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What is hashing file organization? In the hashing file organization, a hash function is computed on some attribute of every record. The result of the hash function specify in

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One-way Associations If an association is only traversed in single direction, then it is known as one-way association. It is implemented as a pointer or an attribute which con

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What is assertion? Mention the forms available. An assertion is a predicate expressing a condition that we wish the database always to satisfy. Domain integrity constraints.

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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.

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Define query optimization. Query optimization refers to the process of search the lowest -cost method of evaluating a given query.

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Define the Query optimisation The query parser commonly generates a standard initial tree to correspond to an SQL query, with no doing any optimization. Such type of a canonica

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ER diegrams, How to draw an ER diagram to a finance companz

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State the Design of Associations Before designing associations, it is essential to know the way they are used. For this, analysis of association traversals is required. It is

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