7.142 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

Total number of waits from this wait class

TIME_WAITED

NUMBER

Total amount of time spent in waits from this wait class (in hundredths of a second)

TOTAL_WAITS_FG

NUMBER

Total number of waits from this wait class, from foreground sessions

TIME_WAITED_FG

NUMBER

Total amount of time spent in waits from this wait class, from foreground sessions (in hundredths of a second)

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 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 the container ID for that PDB.