Skip to Main Content

Oracle Database Discussions

Announcement

For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle.com. Technical questions should be asked in the appropriate category. Thank you!

What exactly does SHRINK SPACE COMPACT do ?

flying_penguinJan 23 2016 — edited Jan 25 2016

RDBMS Version: 11.2.0.4

Platform : Oracle Linux 6.5

Question1.

What exactly does SHRINK SPACE COMPACT do ? When I googled , I came across the following diagram from http://fatdba.com/tag/architecture/

What do the blue lines and blue dotted lines in the diagram represent ?

SHRINK-Compact.png

Question2.

If I run just ALTER TABLE EMP SHRINK SPACE ; command (without running SHRINK SPACE COMPACT) , it will still do what SHRINK SPACE COMPACT was supposed to do. Right ? Then , what is the advantage in running SHRINK SPACE COMPACT ?

Comments
Locked Post
New comments cannot be posted to this locked post.
Post Details
Locked on Feb 22 2016
Added on Jan 23 2016
10 comments
8,026 views