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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_10

10. How to Work with Adaptive Plans

Stelios Charalambides1 

(1)New Hampton, New Hampshire, USA

Imagine you’ve come to conquer the planet SQL but those pesky aliens are constantly changing their bind variable values presenting skewed data all the time, and sometimes not even reporting how many rows there are. The name of the game would be Adapt and Conquer. Another adjective you could use would be Dynamic. Your space fleet’s motto might well be “Victory through Adaptive and Dynamic Plans.” In the world of SQL plans, Adaptive Cursor Sharing has already been introduced in the previous chapter. ACS deals with different combinations ...

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ISBN: 9781484224359Purchase book