RE: Extra rows returned on V$transaction query.
- From: "Yasin Baskan" <yasin.baskan@xxxxxxxxxxxxxxxx>
- To: <ontarioloverr@xxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
- Date: Mon, 27 Nov 2006 09:47:36 +0200
Are you using autonomous transactions? They show up as different rows in
v$transaction.
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Rob G
Sent: Monday, November 27, 2006 3:52 AM
To: oracle-l@xxxxxxxxxxxxx
Subject: Extra rows returned on V$transaction query.
Hi all,
I was running a transaction and I was looking into v$transaction on the
usage of undo blocks. While monitoring sometimes it returned 2 or 3
rows, but mostly one row. What do the second and third row represent in
this case:
12:33:35 SQL> select XIDUSN, START_TIME, SES_ADDR, NAME, USED_UBLK,
STATUS
12:34:18 2 from v$transaction
12:34:31 3 where SES_ADDR = 'BA7664FC';
XIDUSN START_TIME SES_ADDR
---------- -------------------- --------
NAME
------------------------------------------------------------------------
--------
USED_UBLK STATUS
---------- ----------------
8 11/26/06 11:49:25 BA7664FC
127101 ACTIVE
12:34:52 SQL> /
XIDUSN START_TIME SES_ADDR
---------- -------------------- --------
NAME
------------------------------------------------------------------------
--------
USED_UBLK STATUS
---------- ----------------
8 11/26/06 11:49:25 BA7664FC
127897 ACTIVE
12:35:10 SQL> / /************* THREE ROWS RETURNED HERE
***********************************************/
XIDUSN START_TIME SES_ADDR
---------- -------------------- --------
NAME
------------------------------------------------------------------------
--------
USED_UBLK STATUS
---------- ----------------
8 11/26/06 12:35:13 BA7664FC
0 INACTIVE
8 11/26/06 11:49:25 BA7664FC
128023 ACTIVE
8 11/26/06 12:35:13 BA7664FC
2 ACTIVE
12:35:13 SQL> l
1 select XIDUSN, START_TIME, SES_ADDR, NAME, USED_UBLK, STATUS
2 from v$transaction
3* where SES_ADDR = 'BA7664FC'
12:35:20 SQL> /
XIDUSN START_TIME SES_ADDR
---------- -------------------- --------
NAME
------------------------------------------------------------------------
--------
USED_UBLK STATUS
---------- ----------------
8 11/26/06 11:49:25 BA7664FC
128373 ACTIVE
12:35:21 SQL>
12:36:11 SQL> / /************* TWO ROWS RETURNED HERE
***********************************************/
XIDUSN START_TIME SES_ADDR
---------- -------------------- --------
NAME
------------------------------------------------------------------------
--------
USED_UBLK STATUS
---------- ----------------
8 11/26/06 11:49:25 BA7664FC
130772 ACTIVE
8 11/26/06 12:36:11 BA7664FC
3 ACTIVE
12:36:11 SQL>
Oracle is 9.2
--
Cheers,
Rob :)
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