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RE: Extra rows returned on V$transaction query.

From: Yasin Baskan <yasin.baskan_at_yapikredi.com.tr>
Date: Mon, 27 Nov 2006 09:47:36 +0200
Message-ID: <083667B535F3464CA0DD0D1DAFA4E3760BC93E44@camexc1.kfs.local>

Are you using autonomous transactions? They show up as different rows in v$transaction.

From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Rob G Sent: Monday, November 27, 2006 3:52 AM
To: oracle-l_at_freelists.org
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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http://www.freelists.org/webpage/oracle-l Received on Mon Nov 27 2006 - 01:47:36 CST

Original text of this message

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