V$TRANSACTION_ENQUEUE displays locks owned by transaction state objects.
| Column | Datatype | Description | 
|---|---|---|
ADDR | 
RAW(4 | 8) | 
Address of lock state object | 
KADDR | 
RAW(4 | 8) | 
Address of lock | 
SID | 
NUMBER | 
Identifier for session holding or acquiring the lock | 
TYPE | 
VARCHAR2(2) | 
Type of lock. TX indicates transaction enqueue. | 
ID1 | 
NUMBER | 
Lock identifier #1 (depends on type) | 
ID2 | 
NUMBER | 
Lock identifier #2 (depends on type) | 
LMODE | 
NUMBER | 
Lock mode in which the session holds the lock:
  | 
REQUEST | 
NUMBER | 
Lock mode in which the process requests the lock:
  | 
CTIME | 
NUMBER | 
Time since current mode was granted | 
BLOCK | 
NUMBER | 
The lock is blocking another lock |