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unable to see DMLs in v$logmnr_contents [message #237478]

Mon, 14 May 2007 11:04

Anand Ramaswamy
Messages: 111
Registered: January 2005

Senior Member

Hi All,
I'll explain the steps I performed.

SESSION 1:
SQL>EXECUTE DBMS_LOGMNR.ADD_LOGFILE(LOGFILENAME => '/d1/log01a.dbf', options => dbms_logmnr.new);

SQL>EXECUTE DBMS_LOGMNR.ADD_LOGFILE(LOGFILENAME => '/d1/log02a.dbf', options => dbms_logmnr.addfile);

SQL>EXECUTE DBMS_LOGMNR.ADD_LOGFILE(LOGFILENAME => '/d1/log03a.dbf', options => dbms_logmnr.addfile);

SQL>EXECUTE DBMS_LOGMNR.START_LOGMNR(OPTIONS=>DBMS_LOGMNR.COMMITTED_DATA_ONLY);


SESSION 2:
SQL>connect development/password
SQL>INSERT INTO T1 VALUES(1, 2);
SQL>INSERT INTO T1 VALUES(3, 4);
SQL>COMMIT;
SQL>DELETE FROM T1;
SQL>COMMIT;

SESSION 1:
SQL>SELECT * FROM V$LOGMNR_CONTENTS WHERE SEG_NAME='T1';
no rows selected
SQL>

Am I doing something wrong here. I expected to see the DMLs performed by development user.
Can anyone help??

Thanks in advance
qA

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Re: unable to see DMLs in v$logmnr_contents [message #237492 is a reply to message #237478]

Mon, 14 May 2007 11:36

Michel Cadot
Messages: 68651
Registered: March 2007
Location: Nanterre, France, http://...

Senior Member
Account Moderator

These statements are surely in files you don't give to log miner.
Log Miner can only see data from DML executed before its start.

Regards
Michel

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Re: unable to see DMLs in v$logmnr_contents [message #237504 is a reply to message #237492]

Mon, 14 May 2007 12:44

Anand Ramaswamy
Messages: 111
Registered: January 2005

Senior Member

Hi Michel,
Thanks for your reply. Even now I could not see any output in v$logmnr_contents.
Please see the new sequence of events.

SESSION 1:
SQL>connect development/password
SQL>INSERT INTO T1 VALUES(1, 2);
SQL>INSERT INTO T1 VALUES(3, 4);
SQL>COMMIT;
SQL>DELETE FROM T1;
SQL>COMMIT;

SESSION 2:
SQL>EXECUTE DBMS_LOGMNR.ADD_LOGFILE(LOGFILENAME => '/d1/log01a.dbf', options => dbms_logmnr.new);

SQL>EXECUTE DBMS_LOGMNR.ADD_LOGFILE(LOGFILENAME => '/d1/log02a.dbf', options => dbms_logmnr.addfile);

SQL>EXECUTE DBMS_LOGMNR.ADD_LOGFILE(LOGFILENAME => '/d1/log03a.dbf', options => dbms_logmnr.addfile);

SQL>EXECUTE DBMS_LOGMNR.START_LOGMNR(OPTIONS=>DBMS_LOGMNR.COMMITTED_DATA_ONLY);


SESSION 2:
SQL>SELECT * FROM V$LOGMNR_CONTENTS WHERE SEG_NAME='T1'; 
no rows selected
SQL>

--tried lower case 't1' also in the above query

What could be the reason??

Regards
qA

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Re: unable to see DMLs in v$logmnr_contents [message #237505 is a reply to message #237504]

Mon, 14 May 2007 12:53

Michel Cadot
Messages: 68651
Registered: March 2007
Location: Nanterre, France, http://...

Senior Member
Account Moderator

You don't specify where Log Miner has to find dictionary data.
Add "sys.dbms_logmnr.dict_from_online_catalog" to your option.

Regards
Michel

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Re: unable to see DMLs in v$logmnr_contents [message #237512 is a reply to message #237505]

Mon, 14 May 2007 13:33

Anand Ramaswamy
Messages: 111
Registered: January 2005

Senior Member

Thanks Michel,
I got it now.

Regards,
qA

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