My Oracle Support Banner

11g Table compression : Overview (Doc ID 466362.1)

Last updated on FEBRUARY 22, 2024

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 11.1 to 11.2]
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 Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.


Oracle Database 11g extends compression for OLTP data. Support for conventional DML operations (INSERT, UPDATE, DELETE). The new algorithm significantly reduces write overhead. Batched compression ensures no impact for most OLTP transactions. Also no impact on reads, since reads may actually see improved performance due to fewer I/Os and enhanced memory efficiency.


DBA's with prior knowledge of table compression for bulk load operations in Oracle 9i.


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

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