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What functions does a data dictionary perform?
In a (DBMS)data management system, the principal functions performed by the data dictionary are
Construct a generalization-specialization hierarchy for a motor-vehicle sales company. The company sells motorcycles that comprise an engine number and cost; cars that have a chass
Relational and E-R Model There are three types of constraints on relational database that have: DOMAIN CONSTRAINT PRIMARY KEY CONSTRAINT INTEGRITY CONSTRAINT
The natural join is equal to which product? The natural join is equal to Combination of projection and Cartesian product
A student entity type has the following attributes,name..
Use of partial data by applications : In common, applications work with views rather than whole relations. Thus, it may be more appropriate to work with subsets of relations rather
How to draw an ER diagram to a finance companz
Prepare Heart Failure Registry database How are you today? Please I would like you to design a Heart Failure registry where doctors will log in to enter information about their
What is authorization graph? Passing of authorization from single user to another can be shown by an authorization graph.
what is er digram given that example of hospital,bank and library er digram.
The need for three level architecture The aim of the three level architecture is to divide each user's view of the database from the way the database is physically shown.
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