DBA_HIST_CON_SYSMETRIC_SUMM

DBA_HIST_CON_SYSMETRIC_SUMM displays a history of statistical summary of all metric values in the system metrics long duration (60-second) group. This view contains snapshots of V$CON_SYSMETRIC_SUMMARY.

Column	Datatype	Description
`SNAP_ID`	`NUMBER`	Unique snapshot ID
`DBID`	`NUMBER`	Database ID for the snapshot
`INSTANCE_NUMBER`	`NUMBER`	Instance number for the snapshot
`BEGIN_TIME`	`DATE`	Begin time of the interval
`END_TIME`	`DATE`	End time of the interval
`INTSIZE`	`NUMBER`	Interval size (in hundredths of a second)
`GROUP_ID`	`NUMBER`	Group ID
`METRIC_ID`	`NUMBER`	Metric ID
`METRIC_NAME`	`VARCHAR2(64)`	Metric name
`METRIC_UNIT`	`VARCHAR2(64)`	Unit of measurement
`NUM_INTERVAL`	`NUMBER`	Number of intervals observed
`MINVAL`	`NUMBER`	Minimum value observed
`MAXVAL`	`NUMBER`	Maximum value observed
`AVERAGE`	`NUMBER`	Average over the period
`STANDARD_DEVIATION`	`NUMBER`	One standard deviation
`SUM_SQUARES`	`NUMBER`	Sum of the squared deviations from the mean
`CON_DBID`	`NUMBER`	The database ID of the PDB for the sampled session
`CON_ID`	`NUMBER`	The ID of the container that `CON_DBID` identifies. Possible values include: When queried from a non-CDB, the statistics for that instance are returned, and the `CON_ID` value is `0`. When queried from the root of a CDB, the statistics in every container are returned, and the `CON_ID` value indicates the container to which the statistics belong. When queried from a PDB, statistics from that PDB are returned, and the `CON_ID` value is the container ID for that PDB.

Note:

“V$CON_SYSMETRIC_SUMMARY”
“DBA_HIST_SYSMETRIC_SUMMARY”