2008/8/8, Tanel Poder <tanel.poder.003@xxxxxxx>: > The reason why you didn't see any cursor using that CPU time could be due > how some Oracle calls are handled. > > For example when you run "describe xyz" in sqlplus, that describe command > does not go through normal cursor parse/execute/fetch cycle. In fact there > is no library cache cursor associated with this call at all (describe calls > opidsc directly in kernel). Aside from original topic this is cool insight for me. A while ago I tried to trace sql*plus session for desc <tablename> and was wondering why nothing is in trace file although SQL*Plus have to __somehow__ get info out of data dictionary. Now I know :) Gints Plivna http://www.gplivna.eu -- //www.freelists.org/webpage/oracle-l