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

START_TIME

DATE

NOT NULL

Start time of the recovery operation

TYPE

VARCHAR2(64)

NOT NULL

Type of recovery operation being performed:

• CRASH RECOVERY

• INSTANCE RECOVERY

• MEDIA RECOVERY

ITEM

VARCHAR2(32)

NOT NULL

Item being measured.

When TYPE is CRASH RECOVERY or INSTANCE RECOVERY, the possible values are:

• Log Files

• Redo Blocks

When TYPE is MEDIA RECOVERY, the possible values are:

• Active Apply Rate

• Average Apply Rate

• Maximum Apply Rate

• Redo Applied

• Log Files

• Last Applied Redo

• Active Time

• Elapsed Time

• Apply Time per Log

• Checkpoint Time per Log

• Standby Apply Lag

• Recovery ID

UNITS

VARCHAR2(32)

The units of measurement for each item

SOFAR

NUMBER

Amount of work done so far

TOTAL

NUMBER

Total amount of work expected

TIMESTAMP

DATE

Timestamp of the last redo record applied

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