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RE: dblink problem ( ORA-02019 )

From: Reardon, Bruce (CALBBAY) <>
Date: Wed, 10 Jul 2002 23:03:19 -0800
Message-ID: <>

Check the sqlnet.ora on both boxes - are they the same? There was a bug in 1 version where the domain would get selected from the default_domain present in sqlnet.ora

Bruce Reardon

-----Original Message-----

Sent: Thursday, 11 July 2002 16:13


many thanks to all who replied to my query. I was able to solve the problem by changing the dblink create stmt. It seems the user had created the links as " CREATE PUBLIC DATABASE LINK abc.WORLD CONNECT TO username

        IDENTIFIED BY pwd USING '' ; " I recreated the dblinks as

        IDENTIFIED BY pwd USING '' ; "

However , Kevin's reply has resulted in me finding another problem. When i did a "select * from global_name" on db A , i get "" . but when i do the same on db B , i get only "dbname" ???

i crosschecked all init.ora , sqlnet & tnsnames params on both A & B ,and i did
not find any differences. db_domain for both A & B is world, global_names is FALSE.
db_name, instance_name & service_names are consistent across both A & B.

According to oradocs , global_name is a view for the init.ora param GLOBAL_NAME.
Why is this diff coming and how do i resolve it.

thanks again

-----Original Message-----

Sent: Wednesday, July 10, 2002 10:23 PM

I had this problem in the past at a site where we were switching from .world to named domains. I can't remember exactly where I found it but I remember that the method Oracle used to determining the dblink domain was funky. On both databases, check "select * from global_name" and compare the result to "select * from dba_db_links". It seems to me that the domain extension on the global_name was used as the default extension when creating links. Caused me no end of heartburn -- nothing I couldn't work around, but more work arounds than I was happy with.

Hope my memory is sufficient since I don't have the problem at my current site.

Kevin Kennedy
First Point Energy Corporation

-----Original Message-----

Sent: Wednesday, July 10, 2002 5:53 AM


i have 3 databases(A,B,X) on 3 diff boxes. i have created 1 dblink each from A to X & from B to X. The syntax for dblink creation is exactly same for both dblinks.

I am able to query from dblink A-X as "select * from user.table_at_dblinkAX" but when i try to query from dblink B-X as "select * from user.table_at_dblinkBX"
i get the foll error
Error: ORA-02019: connection description for remote database not found

When i modify my query by suffixing '.world' as "select * from" , the query works fine.

I have compared the entries in init,sqlnet,tnsnmames,listener files on both A & B
databases and they are absolutely similar . i was thinking that the domain or globalnames parameters might be diff on A & B ,
but they are absolutely same .

any suggestions are most welcome ...

thanks in advance

Ratnesh Kumar Singh
Sr. Software Engineer
Patni Computer Systems Ltd
TTC Mahape , Navi Mumbai
Work : (91 22) 7611090/110/128/350 Ext. 2107 Home : (91 22) 8662162
World-Wide Partnerships. World-Class Solutions.
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Author: Reardon, Bruce (CALBBAY)

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Received on Thu Jul 11 2002 - 02:03:19 CDT

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