hiya

use dbms_utility package.
run analyze schema proceedure
run analyze databse proceedure

and look into refer to oracle docs about the various proceedures and functions in this package.you could for example analyze entire sschema,database with this package.this will populate your dba_tables with statistics and row chaining information.:-)

hope it helps

[Edited by hrishy on 02-19-2001 at 01:26 AM]