Oracle9i Database Reference
Release 1 (9.0.1)

Part Number A90190-02
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Dynamic Performance (V$) Views, 205 of 211


V$TRANSACTION

This view lists the active transactions in the system.

Column  Datatype  Description 

ADDR 

RAW(4) 

Address of transaction state object 

XIDUSN 

NUMBER 

Undo segment number 

XIDSLOT 

NUMBER 

Slot number 

XIDSQN 

NUMBER 

Sequence number 

UBAFIL 

NUMBER 

Undo block address (UBA) filenum 

UBABLK 

NUMBER 

UBA block number 

UBASQN 

NUMBER 

UBA sequence number 

UBAREC 

NUMBER 

UBA record number 

STATUS 

VARCHAR2(16) 

Status 

START_TIME 

VARCHAR2(20) 

Start time (wall clock) 

START_SCNB 

NUMBER 

Start system change number (SCN) base 

START_SCNW 

NUMBER 

Start SCN wrap 

START_UEXT 

NUMBER 

Start extent number 

START_UBAFIL 

NUMBER 

Start UBA file number 

START_UBABLK 

NUMBER 

Start UBA block number 

START_UBASQN 

NUMBER 

Start UBA sequence number 

START_UBAREC 

NUMBER 

Start UBA record number 

SES_ADDR 

RAW(4) 

User session object address 

FLAG 

NUMBER 

Flag 

SPACE 

VARCHAR2(3) 

YES if a space transaction 

RECURSIVE 

VARCHAR2(3) 

YES if a recursive transaction 

NOUNDO 

VARCHAR2(3) 

YES if a no undo transaction 

PTX 

VARCHAR 2(3) 

YES if parallel transaction 

NAME 

VARCHAR2(256) 

Name of a named transaction 

PRV_XIDUSN 

NUMBER 

Previous transaction undo segment number 

PRV_XIDSLT 

NUMBER 

Previous transaction slot number 

PRV_XIDSQN 

NUMBER 

Previous transaction sequence number 

PTX_XIDUSN 

NUMBER 

Rollback segment number of the parent XID  

PTX_XIDSLT 

NUMBER 

Slot number of the parent XID 

PTX_XIDSQN 

NUMBER 

Sequence number of the parent XID 

DSCN-B 

NUMBER 

Dependent SCN base 

DSCN-W 

NUMBER 

Dependent SCN wrap 

USED_UBLK 

NUMBER 

Number of undo blocks used 

USED_UREC 

NUMBER 

Number of undo records used 

LOG_IO 

NUMBER 

Logical I/O 

PHY_IO 

NUMBER 

Physical I/O 

CR_GET 

NUMBER 

Consistent gets 

CR_CHANGE 

NUMBER 

Consistent changes 


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