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Define query optimization. Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
What are the General Transformation Rules for Relational operations? Ans: The transformation rules transform one relational algebra expression to AN EQUIVALENT ONE 1. E
I need a help with my assignment of data envelopment analysis which is due for submission next week on monday the 10th Dec. Will you be able to help so that I can submit it on tim
Describe different steps of the object-oriented design process. The broad steps of the object-oriented design process are: a. Define context and modes of use of the system
Need a sample of a clinic database relationships
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Process of normalization is the integral part of designing a database. Justify this statement with suitable database design
differences between a classified catalog and a dictionary catalog
examples of fields in a database
What is foreign key? A relation schema r1 derived from an ER schema may contain among its attributes the primary key of another relation schema r2.this attribute is known as a
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