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Oracle® Database Reference
11g Release 1 (11.1)

B28320-03
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V$TRANSACTION_ENQUEUE

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:
  • 0 - none

  • 1 - null (NULL)

  • 2 - row-S (SS)

  • 3 - row-X (SX)

  • 4 - share (S)

  • 5 - S/Row-X (SSX)

  • 6 - exclusive (X)

REQUEST NUMBER Lock mode in which the process requests the lock:
  • 0 - none

  • 1 - null (NULL)

  • 2 - row-S (SS)

  • 3 - row-X (SX)

  • 4 - share (S)

  • 5 - S/Row-X (SSX)

  • 6 - exclusive (X)

CTIME NUMBER Time since current mode was granted
BLOCK NUMBER The lock is blocking another lock