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Illustrate the class diagram for class room scheduling system
If in any college, the number of classrooms are limited which have to be allocated to various classes and instructors are fixed for every class, then the class diagram for allocation of classrooms and instructors is as follow:
Figure: Class diagram for a class room scheduling system
What is meant by heuristic optimisation?Discuss the major heuristics that are applied during query optimisation.
what is 3nf
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Ask qu. Write a XML with database with book details (Book ID, Title, Author, subject, published year, language, vendor, and price).estion #Minimum 100 words accepted#
#what is cursor its uses ? Explain it
Explain the Recoverable Schedule A recoverable schedule is one in which for each pair of transactions Ti and Tj such that Tj reads a data item formerly written by Ti, the comm
What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
job scheduling for different cubes
Can a filed occur in several field groups. Yes. But it leads to redundant data redundancy.
Waterfall model is the linear model. The process is completed by step by step. We couldn't stop in between of the process. Prototype model: after get the model by low cost budget o
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