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

SGA_SIZE

NUMBER

NOT NULL

Size of the SGA

SGA_SIZE_FACTOR

NUMBER

NOT NULL

Ratio between the SGA_SIZE and the current size of the SGA

ESTD_DB_TIME

NUMBER

NOT NULL

Estimated DB_TIME for this SGA_SIZE

ESTD_PHYSICAL_READS

NUMBER

Estimated number of physical reads

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