Relational database, Database Management System

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write on the various type of relationalkey

Related Discussions:- Relational database

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Which model is record based logical model? Network Modelis basically known as record based logical model.

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What is primary Key Explain? Primary Key - Primary key is one of the candidate keys. It should be selected such in which its attribute values are never, or very rarely, chang

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Consider the join of a relation R with relation S. If R has m tuples and S has n tuples, then the maximum size of join is: If R has m tuples and S has n tuples then maximum siz

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Consider a typical sales invoice that would include the following information. Design a single table to hold all of the information required to store an invoice including this info

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Explain recovery process after system failure using checkpoint. Ans: Checkpoint scheme or method is an extra component of the log based recovery system. This scheme is used to

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What do you mean by Correlated subquery? Subqueries, or nested queries, are used to bring back a set of rows to be used by the parent query. Depending on how the subquery is writ

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What is an object design? Object design is a very interactive method, which decides the relationship among objects, classifies operations on classes, determines overall system

RDBMS, Benefits and limitations

Benefits and limitations

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Tables, does tables are called relations

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