6.112 DBA_WAITERS

DBA_WAITERS shows all the sessions that are waiting for a lock. In an Oracle RAC environment, this only applies if the waiter is on the same instance.

Column	Datatype	NULL	Description
WAITING_SESSION	NUMBER		The waiting session
WAITING_CON_ID	NUMBER		The container ID (CON_ID) of the waiting session
HOLDING_SESSION	NUMBER		The holding session
HOLDING_CON_ID	NUMBER		The container ID (CON_ID) of the holding session.
LOCK_TYPE	VARCHAR2(26)		The lock type
MODE_HELD	VARCHAR2(40)		The mode held
MODE_REQUESTED	VARCHAR2(40)		The mode requested
LOCK_ID1	NUMBER		Lock ID 1
LOCK_ID2	NUMBER		Lock ID 2