Skip Headers
Oracle® Database Reference
12c Release 1 (12.1)

Go to Documentation Home
Go to Book List
Book List
Go to Table of Contents
Go to Index
Go to Master Index
Master Index
Go to Feedback page
Contact Us

Go to previous page
Go to next page
PDF · Mobi · ePub


V$WAITCLASSMETRIC displays metric values of wait classes for the most recent 60-second interval. A history of the last one hour will be kept in the system.

Column Datatype Description
BEGIN_TIME DATE Begin time of the interval
END_TIME DATE End time of the interval
INTSIZE_CSEC NUMBER Interval size (in hundredths of a second)
WAIT_CLASS# NUMBER Number of the class of the wait event
WAIT_CLASS_ID NUMBER Identifier of the class of the wait event
DBTIME_IN_WAIT NUMBER Percent of database time spent in the wait
TIME_WAITED NUMBER Time waited during the interval (in hundredths of a second)
WAIT_COUNT NUMBER Number of times waited
TIME_WAITED_FG NUMBER Amount of time (in hundredths of a second) spent in waits from this wait class in foreground sessions
WAIT_COUNT_FG NUMBER Number of times foreground processes waited
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