9.104 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	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 for 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	The ID of the container to which the data pertains. Possible values include: 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs. 1: This value is used for rows containing data that pertain to only the root n: Where n is the applicable container ID for the rows containing data

Note:

This view returns instance-wide data and a value of 0 in the CON_ID column when queried from the root of a CDB.