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Automated Physical Database Design and Tuning
book

Automated Physical Database Design and Tuning

by Nicolas Bruno
February 2011
Intermediate to advanced content levelIntermediate to advanced
253 pages
8h 4m
English
CRC Press
Content preview from Automated Physical Database Design and Tuning
Declarative Query Processing 13
tuples before passing them to the next operator. Specifically, the Hash Join
operator in the figure passes only matching tuples for which employees earn
more than their managers. The result of this operator is a relation of all en-
gineers who earn more than their managers. This intermediate result is input
to the second Hash Join operator in the figure, which matches employees
and the corresponding departments (the Scan operator over Dept (alias D)
discards all departments with high budgets). This second Hash Join opera-
tor produces the list of all engineers who earn more than their managers and
work in low-budget departments, along with their department information.
This intermediate result is sorted by department cities ...
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Publisher Resources

ISBN: 9781439815670