SNAP_ID

NUMBER

NOT NULL

Unique snapshot ID

DBID

NUMBER

NOT NULL

Database identifier for the snapshot

INSTANCE_NUMBER

NUMBER

NOT NULL

Instance number for the snapshot

MUTEX_TYPE

VARCHAR2(32)

NOT NULL

Mutex type

LOCATION

VARCHAR2(40)

NOT NULL

The code location where the waiter slept for the mutex

SLEEPS

NUMBER

Number of sleeps for this MUTEX_TYPE and LOCATION

WAIT_TIME

NUMBER

Wait time in microseconds

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