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What is vertical fragmentation?
Vertical fragmentation divides the relation by decomposing the scheme R of relation r.
We face problem of stock Opening balance and closing balance in Minus
What do you mean by DBMS? What is its need and what are its goals. Explain? OR Explain Data Base Management System? Sol. Database management system is a
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When are two schedules said to be view equivalent? Ans: Two schedules that is denoted as S and S' are said to be view equivalent if the subsequent three conditions are met
In an E-R diagram an entity set is represent by? In an E-R digram entity set is represted by rectangle.
Define query optimization. Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
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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