Titlebook: Oracle SQL Tuning with Oracle SQLTXPLAIN; Stelios Charalambides Book 20131st edition Stelios Charalambides 2013

过度

Running a Health Check,y is it even mentioned in this book? SQLHC is considered a backup option when SQLT cannot be installed. This does not happen very often, but when it does it is usually because of site restrictions. There are many reasons for this:

天真

The Final Word,er yourself a card-carrying member of the SQLT supporters club. You’ve learned a lot about what SQLT can do, and along the way you’ve probably learned some things about the cost-based optimizer and the Oracle engine. Let me remind you of some of the features we came across on our journey:

chisel

Pde5-Inhibitors

http://image.papertrans.cn/o/image/703503.jpg

Neutropenia

ELATE

Troubleshooting Query Transformations,ate execution plans that are both easy to generate and that run fast. The optimizer uses a number of “tricks” along the way to improve the speed of execution and implements the execution plan in a way that gives the same results as your unmodified SQL. These “tricks” (or heuristics) sometimes include query transformations.

BAIT

Using SQLTXPLAIN with Data Guard Physical Standby Databases,sical standby database. Read only databases like a Data Guard physical standby databases cannot be written to by utilities such as SQLTXPLAIN. In this chapter we explore the special tools created just to deal with Data Guard.

PUT

sed-rate

The Final Word,er yourself a card-carrying member of the SQLT supporters club. You’ve learned a lot about what SQLT can do, and along the way you’ve probably learned some things about the cost-based optimizer and the Oracle engine. Let me remind you of some of the features we came across on our journey:

稀释前

Stelios CharalambidesOracle SQL Tuning with SQLTXPLAIN is a practical guide to SQL tuning the way Oracle‘s own experts do it, using a freely downloadable tool called SQLTXPLAIN.