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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
Chapter 11
Constrained Physical Database Design
In this chapter we discuss some important real-world scenarios that are not
adequately addressed by the physical design problem as defined in Part II.
We then explain how to generalize both the problem formulation and corre-
sponding techniques to address these limitations. Consider, as a motivating
example, the following query:
SELECT a, b, c, d, e
FROM R
WHEREa=10
and suppose that a single tuple from R satisfies a=10. If the space budget
allows it, a covering index I
C
= R(a, b, c, d, e) would be the best alternative
for the query, requiring a single input/output (I/O) to locate the qualifying
row and all the ...
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Publisher Resources

ISBN: 9781439815670