How to understand the implementation of the plan in oracle I mean if I see two implementation plans for a single sql_id plans 2 How to determine the best execution plan? Links and answers are much appreciated. Thank you
How to understand the implementation of the plan in oracle I mean if I see two implementation plans for a single sql_id plans 2 How to determine the best execution plan? Links and answers are much appreciated. Thank you
How to understand the implementation of the plan in oracle I mean if I see two implementation plans for a single sql_id plans 2 How to determine the best execution plan? Links and answers are much appreciated. Thank you
After two execution plans that have the same sql_id, so we can see what you're talking about.
See "Oracle Explain Explain Plan optimizer" by Maria Colgan of the Oracle optimizer group
Examine the various aspects of a selectivity to parallel execution plan
performance and understand what information you should be brilliant
the plan can be overwhelming even for the most experienced DBA. This document
offers a detailed explanation on each of the aspects of the execution plan and a
Overview of what caused the CBO to make the decision, he did.
Tags: Database
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