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How To Find Optimal Index Key COMPRESS Level For Indexes (Doc ID 601690.1)

Last updated on APRIL 08, 2020

Applies to:

Oracle Database - Enterprise Edition - Version 9.2.0.1 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
***Checked for relevance on 04-JUN-2014***


Goal

In a test comparing resulting object size and the COMPRESS integer for index key compression, increasing the COMPRESS integer when creating/altering indexes does not always result in a smaller size.

Example:

How do you know what the value of N should be for this SQL?

Solution

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In this Document
Goal
Solution
References

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