Skip Headers
Oracle® Database Reference
10g Release 2 (10.2)

Part Number B14237-01
Go to Documentation Home
Home
Go to Book List
Book List
Go to Table of Contents
Contents
Go to Index
Index
Go to Master Index
Master Index
Go to Feedback page
Feedback

Go to previous page
Previous
Go to next page
Next
View PDF

V$SESSION_EVENT

This view lists information on waits for an event by a session. Note that the TIME_WAITED and AVERAGE_WAIT columns will contain a value of zero on those platforms that do not support a fast timing mechanism. If you are running on one of these platforms and you want this column to reflect true wait times, you must set TIMED_STATISTICS to true in the parameter file. Please remember that doing this will have a small negative effect on system performance.


See Also:

"TIMED_STATISTICS"

Column Datatype Description
SID NUMBER ID of the session
EVENT VARCHAR2(64) Name of the wait event

See Also: Appendix C, "Oracle Wait Events"

TOTAL_WAITS NUMBER Total number of waits for the event by the session
TOTAL_TIMEOUTS NUMBER Total number of timeouts for the event by the session
TIME_WAITED NUMBER Total amount of time waited for the event by the session (in hundredths of a second)
AVERAGE_WAIT NUMBER Average amount of time waited for the event by the session (in hundredths of a second)
MAX_WAIT NUMBER Maximum time waited for the event by the session (in hundredths of a second)
TIME_WAITED_MICRO NUMBER Total amount of time waited for the event by the session (in microseconds)
EVENT_ID NUMBER Identifier of the wait event
WAIT_CLASS_ID NUMBER Identifier of the class of the wait event
WAIT_CLASS# NUMBER Number of the class of the wait event
WAIT_CLASS VARCHAR2(64) Name of the class of the wait event