Re: RE : ok for the last 18 yrs in using oracle I must have been asleep, "implied database link"
- From: Kellyn Pedersen <kjped1313@xxxxxxxxx>
- To: "robertgfreeman@xxxxxxxxx" <robertgfreeman@xxxxxxxxx>, "TESTAJ3@xxxxxxxxxxxxxx" <TESTAJ3@xxxxxxxxxxxxxx>, "oracle-l@xxxxxxxxxxxxx" <oracle-l@xxxxxxxxxxxxx>, bertrand.guillaumin@xxxxxxxxxx
- Date: Thu, 18 Feb 2010 17:47:34 -0800 (PST)
I tested it, finding it impossible to believe and was shocked to discover it
works, just as described, in 10.2.0.4...
SQL> connect system@marta
Enter password: ***************
Connected.
SQL> select count(*) from dba_tables@martc
2 where owner='DM_OWNER';
COUNT(*)
----------
275
"Kellyn feels sick...and proceeds to update and ensure that all her system
passwords are different for each database...."
Kellyn Pedersen
Multi-Platform DBA
I-Behavior Inc.
http://www.linkedin.com/in/kellynpedersen
www.dbakevlar.blogspot.com
"Go away before I replace you with a very small and efficient shell script..."
--- On Thu, 2/18/10, Bertrand Guillaumin <bertrand.guillaumin@xxxxxxxxxx> wrote:
From: Bertrand Guillaumin <bertrand.guillaumin@xxxxxxxxxx>
Subject: RE : ok for the last 18 yrs in using oracle I must have been asleep,
"implied database link"
To: "robertgfreeman@xxxxxxxxx" <robertgfreeman@xxxxxxxxx>,
"TESTAJ3@xxxxxxxxxxxxxx" <TESTAJ3@xxxxxxxxxxxxxx>, "oracle-l@xxxxxxxxxxxxx"
<oracle-l@xxxxxxxxxxxxx>
Date: Thursday, February 18, 2010, 7:20 AM
Hi,
Are you sure it exists ? I've made tests and it does not work at least in
10.2.0.3.
sqlplus system/pass@db1
SQL*Plus: Release 10.2.0.3.0 - Production on Thu Feb 18 15:16:38 2010
Copyright (c) 1982, 2006, Oracle. All Rights Reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
SQL> SELECT * FROM DBA_USERS@db2;
SELECT * FROM DBA_USERS@db2
*
ERROR at line 1:
ORA-02019: connection description for remote database not found
sqlplus system/pass@db2
SQL*Plus: Release 10.2.0.3.0 - Production on Thu Feb 18 15:16:38 2010
Copyright (c) 1982, 2006, Oracle. All Rights Reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
I've even verified in the documentation and I haven't found trace of it.
Best regards,
________________________________________
De : oracle-l-bounce@xxxxxxxxxxxxx [oracle-l-bounce@xxxxxxxxxxxxx] de la part
de Robert Freeman [robertgfreeman@xxxxxxxxx]
Date d'envoi : jeudi 18 février 2010 00:54
À : TESTAJ3@xxxxxxxxxxxxxx; oracle-l@xxxxxxxxxxxxx
Objet : Re: ok for the last 18 yrs in using oracle I must have been asleep,
"implied database link"
In my mind, if someone is doing such things in code, this is probably a bad
practice. Also I'm not sure it's a great idea from a security point-of-view to
allow such things. Anyone else have any thoughts here?
RF
Robert G. Freeman
Master Principle Consultant, Oracle Corporation
Oracle ACE
Author:
Oracle Database 11g RMAN Backup and Recovery (Oracle Press) - ON ITS WAY SOON!
OCP: Oracle Database 11g Administrator Certified Professional Study Guide
(Sybex)
Oracle Database 11g New Features (Oracle Press)
Oracle Database 10g New Features (Oracle Press)
Other various titles
Blog: http://robertgfreeman.blogspot.com
________________________________
From: "TESTAJ3@xxxxxxxxxxxxxx" <TESTAJ3@xxxxxxxxxxxxxx>
To: oracle-l@xxxxxxxxxxxxx
Sent: Wed, February 17, 2010 1:15:18 PM
Subject: ok for the last 18 yrs in using oracle I must have been asleep,
"implied database link"
Ok so a co-worker asks a question about an implied database link, i'm like
"huh".
so a database link is NOT created in the source database but the
userid/password are the same in both source and destination.
take for example
system on db1 and db2 has a password of x12345.
I do a select count(*) from dba_users@db2 while connected on db1 and it
connects and returns a result set w/o a db link being created.
I've been enlightened again of something new about oracle.
so the question posed is, for a named db link you do "close" it, how do you
close an implied link?
joe
_______________________________________
Joe Testa, Oracle Certified Professional
Senior Engineering & Administration Lead
(Work) 614-677-1668
(Cell) 614-312-6715
Interested in helping out your marriage?
Ask me about "Weekend to Remember"
--
//www.freelists.org/webpage/oracle-l
Other related posts:
