关于SQL Tuning里面常问的问题: SQL Profile和SQL Baseline

三牛哥 7月前 743

这个问题是工作中常用的,也是面试的时候经常考察的问题。下面一些链接比较好:

It’s possible to have both SQL Profiles and SQL Plan Baselines.
SQL PROFILES : Adjust Optimizer cardinality estimations
SPM BASELINES : Direct SQL to follow specific execution plan

Researh on SQL Profiles and SQL Plan Baselines

What is the difference between SQL Profiles and SQL Plan Baselines? (June 17, 2017) Nice table comparision between SQL Profiles and Plan Baselines
https://sateeshv-dbainfo.blogspot.com/2017/06/what-is-difference-between-sql-profiles.html

What is the difference between SQL Profiles and SQL Plan Baselines?
https://blogs.oracle.com/optimizer/what-is-the-difference-between-sql-profiles-and-sql-plan-baselines

Using SQL Plan Management to Control SQL Execution Plans
https://blogs.oracle.com/optimizer/using-sql-plan-management-to-control-sql-execution-plans

SQL Plan Management (Part 1 of 4) Creating SQL plan baselines
https://blogs.oracle.com/optimizer/sql-plan-management-part-1-of-4-creating-sql-plan-baselines

SQL Plan Management (Part 2 of 4) SPM Aware Optimizer
https://blogs.oracle.com/optimizer/sql-plan-management-part-2-of-4-spm-aware-optimizer

SQL Plan Management (Part 3 of 4): Evolving SQL Plan Baselines
https://blogs.oracle.com/optimizer/sql-plan-management-part-3-of-4:-evolving-sql-plan-baselines

SQL Plan Management (Part 4 of 4): User Interfaces and Other Features (February 2, 2009)
https://blogs.oracle.com/optimizer/sql-plan-management-part-4-of-4:-user-interfaces-and-other-features

New SQL Plan Management White Paper (January 30, 2017)
https://blogs.oracle.com/optimizer/new-sql-plan-management-white-paper

Upgrade to Oracle Database 12c and Avoid Query Regression (December 3, 2015)
https://blogs.oracle.com/optimizer/upgrade-to-oracle-database-12c-and-avoid-query-regression

Repairing SQL Performance Regression with SQL Plan Management (October 15, 2019)
https://blogs.oracle.com/optimizer/repairing-sql-performance-regression-with-sql-plan-management

最新回复 (2)
返回
发新帖