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Oracle® Database Reference
11g Release 2 (11.2)

Part Number E17110-04
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V$SYSTEM_WAIT_CLASS

V$SYSTEM_WAIT_CLASS displays the instance-wide time totals for each registered wait class.

Column Datatype Description
WAIT_CLASS_ID NUMBER Identifier of the wait class
WAIT_CLASS# NUMBER Number of the wait class
WAIT_CLASS VARCHAR2(64) Name of the wait class
TOTAL_WAITS NUMBER Number of times waits of the class occurred
TIME_WAITED NUMBER Amount of time spent in the wait by all sessions in the instance
TOTAL_WAITS_FG NUMBER Number of times waits of the class occurred, in the foreground session
TIME_WAITED_FG NUMBER Amount of time spent in the wait, in the foreground session