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

Last updated on MARCH 27, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 7.3.0.0 to 12.1.0.2 [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.

Purpose

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

Scope

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

Details

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

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