rman backup should be smaller than the database ????

Giganews Newsgroups
Subject: rman backup should be smaller than the database ????
Posted by:  newhorizon (mehmetes…@gmail.com)
Date: Wed, 14 Nov 2007

I am using RMAN backup.

When I get the hot RMAN backup using the following commands.

BACKUP DATABASE PLUS ARCHIVELOG;
BACKUP CURRENT CONTROLFILE;

I was expecting to see that the rman backup would be smaller since it
is copying the used blocks for the database. Should I shrink the
tables before the backup ?

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