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* How to Obtain a Formatted Explain Plan - Recommended Methods (Doc ID 235530.1)

Last updated on SEPTEMBER 01, 2023

Applies to:

Oracle Database - Enterprise Edition - Version 8.1.5.0 and later
Oracle Database - Personal Edition - Version 7.1.4.0 and later
Oracle Database - Standard Edition - Version 7.0.16.0 and later
Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Information in this document applies to any platform.

Goal

This article outlines how to use Oracle supplied utilities to obtain a formatted explain plan.

Solution

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In this Document
Goal
Solution
 Obtaining a Formatted Explain Plan
 Manual Methods of Displaying the Plan
 SQL_ID and HASH_VALUE of the SQL
 Version 10.2 and higher
 Last Executed SQL
 SQL_ID and child number of the SQL are known
 gather_plan_statistics hint
 Plan from Memory
 From Automatic Workload Repository (AWR)
 From SQL Tuning Set (STS)
 From SQL Plan Baseline
 Identifying the SQL
 sql_id:
 cursor_child_no:
 Legacy Information
 Version 9.2 and higher
 Dbms_xplan
 v$sql_plan
 Versions 8.1.7 and 9.0.1
 Serial Plans
 Parallel Plans
 Autotrace
 Creating Plan Table
 Populating  the Plan Table
References

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