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What is candidate key?
Candidate Key - A candidate key of an entity set is a minimal superkey, which uniquely identifies each row in the relation.
anyone have a textbook solutions case fair, 8 edition of vol 1 ?, please give me
What are the advantages of creating a table from existing table?
external view of DBMS in healthcare department?
Many-to-many : Entities in A and B are related with any number of entities from each other. Example: Taught_by Relationship among course and faculty. One faculty member ca
explain at least five widly used case tools
The PROJECT operation The project operation is used to choose the records with specified attributes as discarding the others based on some related criteria. This is denotes as ∏
A step-wise distributed database design methodology Following is a step-wise methodology for distributed database design. (1) Examine the nature of distribution. Find out wh
Discuss the term- Design Optimization We have seen various ways of representing the objects.The fundamental design model uses analysis model as the framework for implementati
Explain the systems development life cycle. This is the traditional method to develop, maintain, and replace information systems that contains the project identification and se
how the string works as keyword?
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