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V$ACTIVE_SESSION_HISTORY V$ENQUEUE_STAT V$EVENT_HISTOGRAM V$EVENTMETRIC V$FILE_HISTOGRAM V$FILESTAT V$IOSTAT_FILE V$IOSTAT_FUNCTION V$LATCH * V$ROLLSTAT V$SEGMENT_STATISTICS V$SEGSTAT V$SEGSTAT_NAME V$SERVICE_EVENT V$SERVICE_WAIT_CLASS V$SESSION V$SESSION_EVENT # session

V$SESSION_WAIT # session current or last class event

V$SESSION_WAIT_CLASS # session class level statistics, WAIT_CLASS_ID in v$event_name, V$SESSION_WAIT_HISTORY V$SESSTAT # V$STATNAME V$SESS_TIME_MODEL V$SYSSTAT # V$STATNAME V$SYSTEM_EVENT # class event level statistics V$SYSTEM_WAIT_CLASS # class level statistics, WAIT_CLASS_ID in v$event_name V$SYS_TIME_MODEL V$TEMP_HISTOGRAM V$WAITCLASSMETRIC # class level statistics, most recent 60-second statistics V$WAITCLASSMETRIC_HISTORY V$WAITSTAT #block contention statistics V$TEMPSEG_USAGE V$LOCK V$SESSION_LONGOPS V$SQL V$SQL_PLAN V$SQL_MONITOR V$SQL_PLAN_MONITOR

NO.1: examine load

redo size session logical reads db block changes physical reads physical read total bytes physical writes physical write total bytes parse count (total) parse count (hard) user calls DB time SQL ordered by Parse Calls

NO.2 event