Titlebook: Expert Oracle Indexing and Access Paths; Maximum Performance Darl Kuhn,Sam R Alapati,Bill Padfield Book 2016Latest edition Darl Kuhn, Sam

jovial

不透明性

Law as an Artifact: An Assessment operates in two different modes: normal and tuning. When a SQL statement executes, the optimizer operates in normal mode and quickly identifies a reasonable execution plan. In this mode, the optimizer spends only a fraction of a second to determine the optimal plan.

火海

Middle-Ear

amnesia

澄清

Mri485

分解

Specialized Indexes,ate and manage index organized tables. This chapter explains several specialized indexes that you can create for serving various needs. Most of these specialized indexes are actually B-tree indexes, so it’s not the organization of the index that makes them special. For example, an invisible index is

jocular

Blasphemy

Tuning Index Usage, most important index access paths available to the optimizer. Often, Oracle database administrators are bewildered when the optimizer chooses not to use what they believe is a very useful index, but does a full table scan instead. This chapter devotes attention to exploring some reasons why the opt