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Oracle® Database Reference
12c Release 1 (12.1)

E17615-24
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V$CON_SYSTEM_WAIT_CLASS

V$CON_SYSTEM_WAIT_CLASS displays the time totals for each registered wait class in a container.

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 (in hundredths of a second) spent in the wait by all sessions
TOTAL_WAITS_FG NUMBER Number of times waits from this wait class occurred in foreground sessions
TIME_WAITED_FG NUMBER Amount of time (in hundredths of a second) spent in waits from this wait class in foreground sessions
CON_ID NUMBER When queried from a non-CDB, time totals for each registered wait class in that instance are returned, and the CON_ID value is set to 0.

When queried from the root of a CDB, time totals for each registered wait class in every container is returned, and the CON_ID value indicates the container to which the time total belong.

When queried from a PDB, time totals for each registered wait class in that PDB are returned, and the CON_ID value is set to the container ID for that PDB.