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Oracle9i Database Reference
Release 2 (9.2)

Part Number A96536-02
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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