database system, Database Management System

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What is transaction? Transaction is a unit of program implementation that accesses and possibly updated several data items.

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Benefits of Sequential File Organisation It is quick and efficient when dealing with huge volumes of data that require being processed periodically (batch system). Dra

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how many types of data model in DBMS? explain data abstraction with its different level

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What is the used of specifying alias? Specifying alias: is used to rename column or attribute in a table.

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