what makes oracle not to allow to downgrade

Posted by Lakshmi N on Oct 19, 2015; 9:10pm
URL: http://erman-arslan-s-oracle-forum.124.s1.nabble.com/what-makes-oracle-not-to-allow-to-downgrade-tp429.html

Hi,

What makes oracle not to allow to down grade after changing the compatible parameter.

What is the link like if we set lower version we cannot use features,if set cannot downgrade so upgrading to higher versions needs change in compatible change.

Regards
Lakshmi N