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Oracle® Database Reference
11g Release 2 (11.2)

E40402-14
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DBA_HIST_WAITCLASSMET_HISTORY

DBA_HIST_WAITCLASSMET_HISTORY displays the history of the wait event class metric data kept by the Workload Repository.

Column Datatype NULL Description
SNAP_ID NUMBER NOT NULL Unique snapshot ID
DBID NUMBER NOT NULL Database ID of the snapshot
INSTANCE_NUMBER NUMBER NOT NULL Instance number of the snapshot
WAIT_CLASS_ID NUMBER NOT NULL Identifier of the class of the wait event
WAIT_CLASS VARCHAR2(64)   Name of the class of the wait event
BEGIN_TIME DATE NOT NULL Begin time of the interval
END_TIME DATE NOT NULL End time of the interval
INTSIZE NUMBER NOT NULL Interval size (in hundredths of a second)
GROUP_ID NUMBER NOT NULL Metric group ID
AVERAGE_WAITER_COUNT NUMBER NOT NULL Average waiter count
DBTIME_IN_WAIT NUMBER NOT NULL Percent of database time spent in the wait
TIME_WAITED NUMBER NOT NULL Time waited during the interval (in microseconds)
WAIT_COUNT NUMBER NOT NULL Number of times waited