I hate Ecartis. Anyway, BCHR=Buffer Cache Hit Ratio. For the other stuff, I'm a non-native English speaker and my English is not good enough to provide an explanation. I'll let you know when I lern the parts pertaining to the explanation of the rest. -- Mladen Gogala Oracle DBA email:mladeng@xxxxxxxxx Ext: 9787 ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------