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

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