SQL tuning is the iterative process of improving SQL statement performance to meet specific, measurable, and achievable goals. SQL tuning implies fixing problems in deployed applications.

Use SQL Tuning Advisor to obtain recommendations for improving performance of high-load SQL statements, and prevent regressions by only executing optimal plans.

Provides an Oracle Execution Plan for any arbitrary SQL statement through the Oracle Query window. This helps advanced users manually tune their SQL statements.

Database Performance Tuning Guide 19c E96347-06 September 2022 Oracle Database Database Performance Tuning Guide, 19c E96347-06 Copyright © 2007, 2020, Oracle and/or its affiliates. …

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Get Started with Performance Tuning Part IV SQL Tuning Part IV describes how to effectively tune SQL statements and contains the following chapters: Identifying High-Load SQL Statements Tuning SQL …

By using SQL Tuning Advisor and SQL Access Advisor, you can run the query optimizer in advisory mode to examine a SQL statement or set of statements and determine how to improve their efficiency.

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This chapter explains how the PL/SQL compiler optimizes your code and how to write efficient PL/SQL code and improve existing PL/SQL code.