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 theDBMS_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 |