Skip Headers
Oracle® Database Reference
11g Release 2 (11.2)

E40402-10
Go to Documentation Home
Home
Go to Book List
Book List
Go to Table of Contents
Contents
Go to Index
Index
Go to Master Index
Master Index
Go to Feedback page
Contact Us

Go to previous page
Previous
Go to next page
Next
PDF · Mobi · ePub

DBA_HIST_SYSMETRIC_SUMMARY

DBA_HIST_SYSMETRIC_SUMMARY displays a history of statistical summary of all metric values in the System Metrics Long Duration group. This view contains snapshots of V$SYSMETRIC_SUMMARY.

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
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
METRIC_UNIT VARCHAR2(64) NOT NULL Unit of measurement
NUM_INTERVAL NUMBER NOT NULL Number of intervals observed
MINVAL NUMBER NOT NULL Minimum value observed
MAXVAL NUMBER NOT NULL Maximum value observed
AVERAGE NUMBER NOT NULL Average over the period
STANDARD_DEVIATION NUMBER NOT NULL One standard deviation
SUM_SQUARES NUMBER   Sum of the squared deviations from the mean