V$SYSMETRIC_HISTORY

V$SYSMETRIC_HISTORY displays all system metric values available in the database. Both long duration (60-second with 1 hour history) and short duration (15-second with one-interval only) metrics are displayed by this view.

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)
`GROUP_ID`	`NUMBER`	Metric group ID
`METRIC_ID`	`NUMBER`	Metric ID
`METRIC_NAME`	`VARCHAR2(64)`	Metric name
`VALUE`	`NUMBER`	Metric value
`METRIC_UNIT`	`VARCHAR2(64)`	Metric unit description