Database Tuning (MOSC)

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DBMS_MONITOR

edited Dec 27, 2011 7:12AM in Database Tuning (MOSC) 3 commentsAnswered
It seems that DBMS_MONITOR doesn't operate using the standard event mechanism. When I enabled trace in a session using DBMS_MONITOR, the
eventdump didn't show anything. When an explicit "alter session set
events" statement was issued, eventdump detected it without problem:

SQL> oradebug setospid 4645
Oracle pid: 30, Unix process pid: 4645, image: oracle@medo (TNS V1-V3)
SQL> oradebug eventdump session
sql_trace level=12
SQL>


Question: what mechanism does DBMS_MONITOR use for tracing sessions?

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