My Oracle Support Banner

Index Fast Full Scan Usage To Avoid Full Table Scans (Doc ID 70135.1)

Last updated on JANUARY 12, 2023

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 7.3.0 to 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.


This article discusses using Index Fast Full Scans (Index FFS) to avoid Full Table Scans (FTS).


Support Analysts and customers who are experiencing problems with their queries doing FTS as opposed to using Index FFS.


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
 When Will Index FFS be used in preference to FTS?
 Preparation: Create a composite index

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.