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multidimensional data model
Relations create the database. They must satisfy various properties, like no duplicate tuples, no ordering of tuples, and atomic attributes, etc. Relations that satisfy these basic
draw er diagram using entities crop,employee,department,plot,cultivation plan,machinery,seed,fertilizer
The natural join is equal to which product? The natural join is equal to Combination of projection and Cartesian product
Niles Video Inc. wants to create a website for online sales of movies (DVD and videotapes). People will be allowed to register as customers on the website and to update their store
Draw an ER diagram that shows the organization of a simple student database. The database captures the information about letter grades obtained by university students who enrolled
What is Oracle databse structure? Oracle database structure: The relational model has three main aspects: Structures: Structures are well-defined objects which store th
how to implement hyrise in C plus plus
what factors might influence a company to outsource its IT infrascture.
It defines that the tuple in one relation that refers to another relation must refer to an existing tuple in that relation. This constraint is states on two relations (not essentia
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