farm management system, Database Management System

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draw er diagram using entities crop,employee,department,plot,cultivation plan,machinery,seed,fertilizer

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Domain Constraints Domain constraints are primarily formed for defining the logically correct values for an attribute of a relation. The relation allows attributes of a relatio

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What is a hash index? A hash index organizes the search keys, with their associated pointers, into a hash file structure.

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Mappings between Levels and Data Independence The 3 levels of abstraction in the database do not exist separately of each other. There must be some correspondence, or mapping

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