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Identifying Unused Indexes (Doc ID 144070.1)

Last updated on NOVEMBER 08, 2023

Applies to:

Oracle Database - Standard Edition - Version 11.2.0.2 to 11.2.0.2 [Release 11.2]
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
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.

Purpose

The purpose of this document is to explain how to find unused indexes using the feature in Oracle 9i and above: "Identifying Unused Indexes" via ALTER INDEX MONITORING USAGE, as mentioned in Oracle9i Database Administrator's Guide, Chapter 11. The clause MONITORING / NOMONITORING USAGE is useful in determining whether an index is being used.

Scope

 This article is intended for database Administrators who want to identify unused indexes in their database.

Details

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