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A Functional dependency is described by X Y between two groups of attributes Y and X that are subsets of R specifies a constraint on the possible tuple that can make a relation
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
Define the notation for classes and atrributes The notation for class, attribute, and operations are shown below: Figure: Class with attributes and operations A
what is lossless & dependency preserving decomposition ?
What is OLAP? OnLine Analytical Processing (OLAP) is a Business Intelligence (BI) reporting system. OLAP gives the user with the capability to sum, count, average and do other
The Maximum no of key fields that can be used in a header is?? 50
what is un ordered and ordered file managment?
Question 1 What are the advantages of DBMS approach in managing data? Question 2 What are the services provided by a database system Question 3 List and briefly describe
draw er diagram using entities crop,employee,department,plot,cultivation plan,machinery,seed,fertilizer
In a Hierarchical model of data records are organized ? In the hierarchical model of data records are organized as Tree structure.
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