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What are the uses of the information in the Data dictionary?
The following information is directly taken from the Data dictionary:
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Define tuple variable Tuple variable is a type of variable whose domain is the set of all tuples.
How the time stamps are implemented Use the value of the system clock as the time stamp. That is a transaction's time stamp is equivalent to the value of the clock when the tra
Distributed Database Management System
what is Nested relational model? Explain with examples.
What do you mean through integrity constraints? Integrity Constraints -An integrity constraint is a condition specified on a database schema and restricts the data in which
Define query optimization. Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
explain normalization,and give the examples 1NF,2NF,3NF,BCNF.AND FUNCTIONAL DEPANDENACY AND DECOMPOSITION TECHNIQUES.
#A multinational tour operator agency has gained new business growth in the North American market through the use of social media. Its operation has expanded by 50% within six mont
what is lossless & dependency preserving decomposition ?
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