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Define the Canonical cover
Ans: A canonical cover Fc for F is a set of dependencies like F logically implies all dependencies in Fc, and Fc logically entails all dependencies in F. Fc must have the subsequent properties:
Fc is minimal in certain sense - it does not consist of extraneous attributes, and it combines functional dependencies with similar left side. It is cheaper to test Fc than it is to test F itself.
What is OOM? Object oriented modeling is an approach by which modeling of systems is done by visualizing the system based on real world concepts. Object oriented modeling does
What Command You Use What Day of the week were you born
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Describe the various types of Online Analytical Processing (OLAP) tools and briefly discuss how the support common analytical operations.
I am going to develop a web site to present decision tree structure. For this, I want a web application with AJAX technology to connect the database and prepare the decision tree's
Define the concept of generalization A generalization is relationship between specific kind of thing and general thing. It is also known as "is-a-kind-of" relationship. Inher
external and internal mapping with examples
While sorting field groups we cannot use more than one key field False.
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Difference between Operating System and Database Security Security within the operating system can be executed at various levels ranging from passwords for access to system, t
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