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Oracle9i Database Reference
Release 2 (9.2)

Part Number A96536-01
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Dynamic Performance (V$) Views, 232 of 237


V$TRANSACTION_ENQUEUE

V$TRANSACTION_ENQUEUE displays locks owned by transaction state objects.

Column Datatype Description

ADDR

RAW(4)

Address of lock state object

KADDR

RAW(4)

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


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