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This view lists all locks acquired by every transaction on the system.
XIDUSN
NUMBER
Undo segment number
XIDSLOT
Slot number
XIDSQN
Sequence number
OBJECT_ID
Object ID being locked
SESSION_ID
Session ID
ORACLE_USERNAME
VARCHAR2(30)
Oracle user name
OS_USER_NAME
VARCHAR2(15)
OS user name
PROCESS
VARCHAR2(9)
OS process ID
LOCKED_MODE
Lock mode