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Write an sql statement to find what is the percentage of home policies which are from the state of Arizona out of all Home policies by Policy Value.
design a generalization specialization hierarchy for a motor vehicle sales company. the company sells motorcycles, passenger cars, vens and buses.
WOUND-WAIT
What is a function group? A function group is a collection of logically related modules that share global data with every other. All the modules in the group are contained in
write a database program for concurrency transaction in a bank
Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
(a) Differentiate between information and data . (b) List and briefly explain five potential benefits of the database approach compared to conventional file systems. (c) Diff
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What are called index-sequential files? The files that are ordered sequentially with a primary index on the search key are known as index-sequential files
Define Atom of domain relational calculus An atom has the outline 1 , x 2 , ... , x n > -> r , in which r stands for a relation on n attributes and x 1 , x 2 , ... , x n ar
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