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Oracle SQL Tuning with Oracle SQLTXPLAIN: Oracle Database 12c Edition, Second Edition
book

Oracle SQL Tuning with Oracle SQLTXPLAIN: Oracle Database 12c Edition, Second Edition

by Stelios Charalambides
April 2017
Intermediate to advanced
436 pages
12h 7m
English
Apress
Content preview from Oracle SQL Tuning with Oracle SQLTXPLAIN: Oracle Database 12c Edition, Second Edition

© Stelios Charalambides  2017

Stelios Charalambides, Oracle SQL Tuning with Oracle SQLTXPLAIN, 10.1007/978-1-4842-2436-6_6

6. Collecting Good Oracle 12c Statistics

Stelios Charalambides1 

(1)New Hampton, New Hampshire, USA

I probably do go on and on about statistics, how it is crucial to collect good statistics, how statistics are to blame for all the tuning ills in the world, and how all tuning problems would be fixed if we just had good statistics. But what exactly are good statistics and why can’t we rely on the default mechanisms and auto-collection mechanism to do the job for us? The answer is that you probably can, most of the time! But when the automation is not ideal then you have to know what is happening, what good practices are, and how ...

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Publisher Resources

ISBN: 9781484224359Purchase book