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

TIMESTAMP(3)

NOT NULL

Begin time of the interval

END_TIME

TIMESTAMP(3)

NOT NULL

End time of the interval

INTSIZE_CSEC

NUMBER

NOT NULL

Interval size (in hundredths of a second)

SEQUENCE#

NUMBER

NOT NULL

A sequential counter that uniquely describes the V$RSRC_PLAN_HISTORY entry to which these consumer group statistics apply. When the instance is restarted, this value is reset to zero.

CONSUMER_GROUP_ID

NUMBER

NOT NULL

Consumer group object ID (a unique number, consistent across database shutdowns and startups)

CPU_CONSUMED_TIME

NUMBER

NOT NULL

Cumulative amount of CPU time consumed by all sessions in the consumer group, in milliseconds

CPU_WAIT_TIME

NUMBER

NOT NULL

Cumulative amount of time that sessions waited for CPU because of resource management, in milliseconds. This does not include waits due to latch or enqueue contention, I/O waits, and so on. When CPU resources are not being actively managed, this value is set to zero.

AVG_RUNNING_SESSIONS

NUMBER

Average number of sessions in the consumer group that are currently running

AVG_WAITING_SESSIONS

NUMBER

Average number of sessions in the consumer group that are waiting for CPU due to resource management. When CPU resources are not being actively managed, this value is set to zero.

AVG_CPU_UTILIZATION

NUMBER

Average percentage CPU consumed by the consumer group

IO_REQUESTS

NUMBER

NOT NULL

I/O requests

IO_MEGABYTES

NUMBER

NOT NULL

I/O megabytes

IOPS

NUMBER

I/O operations per second during the previous minute for this PDB

IOMBPS

NUMBER

I/O megabytes per second during the previous minute for this PDB

AVG_ACTIVE_PARALLEL_STMTS

NUMBER

The average number of parallel statements that were running during the 1-minute metric window

AVG_QUEUED_PARALLEL_STMTS

NUMBER

The average number of parallel statements that were queued during the 1-minute metric window

AVG_ACTIVE_PARALLEL_SERVERS

NUMBER

The average number of parallel servers that were actively running as part of a parallel statement during the 1-minute metric window

AVG_QUEUED_PARALLEL_SERVERS

NUMBER

The average number of parallel servers that were requested by queued parallel statements during the 1-minute metric window

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