DBA_HIST_SESSMETRIC_HISTORY

DBA_HIST_SESSMETRIC_HISTORY displays the history of several important session metrics.

Note: This view is populated only if a session metric exceeds a server metric threshold that was configured using the DBMS_SERVER_ALERT package.

Column	Datatype	NULL	Description
SNAP_ID	NUMBER	NOT NULL	Unique snapshot ID
DBID	NUMBER	NOT NULL	Database ID for the snapshot
INSTANCE_NUMBER	NUMBER	NOT NULL	Instance number for the snapshot
BEGIN_TIME	DATE	NOT NULL	Begin time of the interval
END_TIME	DATE	NOT NULL	End time of the interval
SESSID	NUMBER	NOT NULL	Session ID
SERIAL#	NUMBER	NOT NULL	Session serial number
INTSIZE	NUMBER	NOT NULL	Interval size (in hundredths of a second)
GROUP_ID	NUMBER	NOT NULL	Group ID
METRIC_ID	NUMBER	NOT NULL	Metric ID
METRIC_NAME	VARCHAR2(64)	NOT NULL	Metric name
VALUE	NUMBER	NOT NULL	Metric Value
METRIC_UNIT	VARCHAR2(64)	NOT NULL	Unit of measurement
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: 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

See Also: The DBMS_SERVER_ALERT package in Oracle AI Database PL/SQL Packages and Types Reference