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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_3

3. The Cost-Based Optimizer Environment

Stelios Charalambides1 

(1)New Hampton, New Hampshire, USA

After reviewing the AWR report and homing in on the SQL you want to work on (bear in mind there could be more than one), you now approach the tricky problem of dealing with an individual SQL.

Every SQL needs individual attention. Approach it with skepticism and caution and watch out for hidden complications and unexpected traps. Be like the alien who came to earth to try his hand at driving. He’d read all about it and knew the physics involved in the engine. It sounded like fun. He sat down in the driver’s seat and turned the ignition; ...

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ISBN: 9781484224359Purchase book