SNAP_ID

NUMBER

NOT NULL

Unique snapshot ID

DBID

NUMBER

NOT NULL

Database ID for the snapshot

INSTANCE_NUMBER

NUMBER

NOT NULL

Database instance number

NAME

VARCHAR2(64)

NOT NULL

Name of the statistic:

• aggregate PGA auto target

• aggregate PGA target parameter

• bytes processed

• cache hit percentage

• extra bytes read/written

• global memory bound

• max processes count

• maximum PGA allocated

• maximum PGA used for auto workareas

• maximum PGA used for manual workareas

• over allocation count

• PGA memory freed back to OS

• process count

• recompute count (total)

• total freeable PGA memory

• total PGA allocated

• total PGA inuse

• total PGA used for auto workareas

• total PGA used for manual workareas

See Also: V$PGASTAT for descriptions of the statistics

VALUE

NUMBER

Statistic value

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