V$SYSTEM_EVENT

V$SYSTEM_EVENT displays information about all the wait events (summary of each wait event since the instance is started). By default, only the system administrator can access this view. Common users can access the view only after being authorized. This view exists in the PG_CATALOG and SYS schemas.

**Table 1** V$SYSTEM_EVENT columns
Name	Type	Description
event	character varying(64)	Wait event name
total_waits	numeric	Total number of wait events
total_timeouts	numeric	Total number of timeout events
time_waited	numeric	Total time (in centiseconds) of wait events
average_wait	numeric	Average time (in centiseconds) of wait events
time_waited_micro	numeric	Total time (in microseconds) of wait events
total_waits_fg	numeric	Not supported. Set it to NULL.
total_timeouts_fg	numeric	Not supported. Set it to NULL.
time_waited_fg	numeric	Not supported. Set it to NULL.
average_wait_fg	numeric	Not supported. Set it to NULL.
time_waited_micro_fg	numeric	Not supported. Set it to NULL.
event_id	numeric	Not supported. Set it to NULL.
wait_class_id	numeric	Not supported. Set it to NULL.
wait_class#	numeric	Not supported. Set it to NULL.
wait_class	character varying(64)	Class name of a wait event
con_id	numeric	Not supported. Set it to 0.