MIS, Database Management System

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What is called query processing? Query processing refers to the range of activities included in extracting data from a database.

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What are the uses of the information in the Data dictionary? The following information is directly taken from the Data dictionary: Information on fields displayed with

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Super keys of a relation can have extra attributes. Candidate keys are minimal super key, i.e. such a key have no extraneous attribute. An attribute is known as extraneous if even

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Event Occurrence of a process is called event. In other words, the object can receive many input instructions. The changes which occur due to these instructions are known as e

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What is known as sequential file organization? In the sequential file organization, the records are kept in sequential order, according to the value of a "search key" of every

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