Upgrade Oracle Enterprise Manager to

Enterprise Manager was just released and now is time to test and document the process. The official documentation can be obtained from here (http://docs.oracle.com/cd/E24628_01/upgrade.121/e22625/upgrading_12101_PS1_gtgstrtd.htm) and this document cover the steps I followed and may not work on yours (I’m not responsible of any issues/problems caused to your system).This document covers Oracle Enterprise Manager upgrade… Continue reading Upgrade Oracle Enterprise Manager to

Oracle Recursive Sessions ORA-00018

Today I want to talk about Oracle Database session usage; last week there was a problem with a database reporting ORA-00018: maximum number of sessions exceeded, but the number of sessions from v$session was much less than the one specified in SESSIONS parameter.So, what was going on?Turns out this is explained by internal recursive sessions… Continue reading Oracle Recursive Sessions ORA-00018