Failed to create Database Link in OWB 9.2 for remote SQL Server

Hi,
I have to create Database link for connecting to SQL server in a different machine.I am using OWB 9.2 and XP.
Dataserver is the machine name which is running SQL Server
I included follwing lines in TNSNAMES.ORA file
hsodbc.world =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = dataserver)(PORT = 1433)
(CONNECT_DATA = (SID=hsodbc.world)
(HS =OK)
I included follwing lines in Listener.ORA file
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = dataserver)(PORT = 1433)
(SID_DESC=
(SID_NAME=hsodbc.world)
(ORACLE_HOME=C:\ora92)
(PROGRAM=hsodbc)
I included follwing lines in inithsodbc.ORA file
HS_FDS_CONNECT_INFO = testdsn
HS_FDS_TRACE_LEVEL = 0
While creating new database link I gave the follwing values
DB Link Name : Mylink
SQL * Net Connect String: hsodbc
User Name: sa
password:<my password>
Then clicked "Create and Test" button to get the follwing error message
Testing...
Failed.
ORA-12154 TNS:could not resolve service name
*Cause: The service name specified is not defined correctly in the TNSNAMES.ORA file
*Action: Make the following checks and correct the error:
- Verify that a TNSNAMES.ORA file exists on your repository server
in the proper place and is accessible. See the operating
system specific manual for details on the required name and location.
- Check to see that the service name exists in one of the
TNSNAMES.ORA files and add it if necessary.
- Make sure there are no syntax errors in the file.
Particularly look for unmatched parentheses or stray characters.
Any error in a TNSNAMES.ORA file makes it unusable. See
Chapter 4 in the SQL*Net V2 Administrator's Guide. If possible,
regenerate the configuration files using the Oracle Network Manager.
Is there anything wrong in my configuration. Please help me in getting out of this problem.
Thanks in advance
Andy

Hi Mark,
Thanks Mark.I did the changes in the specified .ora file but now it shows a different error message.
The error is
Testing...
Failed.
Cwm Error Message: SQL Exception
Cwm Error: SQL Exception
Class Name: CacheMediator
Method Name: getDDEntryFromDB
Repository Error Message: ORA-28545: error diagnosed by Net8 when connecting to an agent
NCRO: Failed to make RSLV connection
ORA-02063: preceding 2 lines from MYLINK
Query: select 1 from dual@MyLink
I got the same error when i tried manually in sql plus.
Please help me in getting out of thid problem
Thanks in advance
Andy

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Thanks!
Dejan

Hi,
I have created following:
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Database link created.
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SQL*Plus: Release 11.1.0.7.0 - Production on Pon Mar 1 14:58:40 2010
Copyright (c) 1982, 2008, Oracle. All rights reserved.
ERROR:
ORA-12154: TNS:could not resolve the connect identifier specified
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C:\>sqlplus sz/admin@orcl
SQL*Plus: Release 11.1.0.7.0 - Production on Pon Mar 1 14:58:52 2010
Copyright (c) 1982, 2008, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> select * from ges@hs_orcl;
select * from ges@hs_orcl
ERROR at line 1:
ORA-02019: connection description for remote database not found
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Change of a database link in OWB

I have a good suggestion to change a a database link when a server is moved to another location (in that case the database link of the source module has to be changed)
In OWB 9.0.2 it's not impossible to delete a database link in OWB, so you have to do it manually
(in 9.0.4 it should be possible, but this version is also not easy to use).
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CREATE DATABASE LINK "<dblink name>"
CONNECT TO "<...>" IDENTIFIED BY "<...>"
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Done!
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Regards,
Maurice
;

SQL> create view test_view as select dummy from [email protected]
2 ;
View created.
SQL> select dummy from test_view;
D
X
Execution Plan
0 SELECT STATEMENT (REMOTE) Optimizer=CHOOSE
1 0 TABLE ACCESS (FULL) OF 'DUAL' FIRST9.XXXX.COM
Statistics
7 recursive calls
4 db block gets
2 consistent gets
0 physical reads
212 redo size
363 bytes sent via SQL*Net to client
425 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
NOW WE PULL OUT THE NETWORK CABLE connecting the two servers.
SQL> select dummy from test_view;
select dummy from test_view
ERROR at line 1:
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OWB 10g -- Can't Create Database Links for Data Source and Target

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Testing...
Failed.
SQL Exception
Repository Error:SQL Exception..
Class Name: CacheMediator.
Method Name: getDDEntryFromDB.
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Regarding your issue when deploying, have you registered your target locations in the deployment manager and did you first deployed your target location's connector which points out to your source?
I myself had some problems with database link creations in the past and I can't remember exactly what they were but it had something to do with
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OWB can not create database link

Hello!
We use OWB 10.1. We are unable to create database link in the owb as a source for metadata information. The database user we use to connect to the owb have got the right to create database links and the same user can create database links outside the owb. we get the error message
Testing...
Failed.
API2215: Cannot create database link. Please contact Oracle Support with the stack trace and the details on how to reproduce it.
the database user is not the owner of the repository. if we use the repository owner to create the database link it works.
it is also impossible to use a database link, that is created outside the owb, if we use an user that is not the repository owner.
the error message is:
java.sql.SQLException: ORA-02019: connection description for remote database not found
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:158) ....
with the owner everything works fine.
Regards Alex

hi,
If public dblink is a problem then u can create the table with PUBLIC SYNONYM and create a synonym of the table in ur DB so that u can access the table in ur DB and still make I/U/D in the table in the other DB. We just have to grant previlege for the synonym created for DML statements.
Regards
Bharath

Error Creating Database link

Hello Everybody,
I am getting the following error while creating the database link using the connection information at OWB Client.
Testing...
Failed.
ORA-12514 TNS: no listener
*Cause: The connection request could not be completed because the listener is not running
*Action: Ensure that the supplied destination address matches one of the addressed used by the listener
-compare the TNSNAMES.ORA entry with the appropriate LISTENER.ORA file
Start the listener on the remote machine.
The version of OWB Client is 10.1.0.2.0.
When queried at oracle using the userid which i used to login OWB Client i.e. as shown below
select db_link from all_db_links - the database link is created. But none of the obects are accessable with the db link.
Note: I am able to create a database link explicity by issuing the command at backend oracle i.e create database link etc. and also able to access the tables.
Kindly help.
Thanks
Prashanth

Prashanth
my guess is that you can create the database link, which simply points to the remote instance. however, the problem is on the remote instance.
As the error message suggest, make sure that the listener is up and running on the remote machine. The link can be created, but if there is no listener on the other side, you will not get any response.

How to create Database link

Hi all,
While trying to create a database link i am getting the following error:
Create Database Link Failed.
ORA-01031: insufficient privileges
Could you please tell me how to create a database link.
Thanks
Grishma

Hi Grishma,
Login as DBA (SYSTEM or SYS for ex.) in SQL*Plus and run this command:
SELECT *
FROM dba_sys_privs
WHERE grantee = 'USERNAME'
AND PRIVILEGE = 'CREATE DATABASE LINK'
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Dimitri

Create database link not working..

sir,
i have created a database link using the following statement.
create database link orcl.vishnu.com;
but when i tried to insert the data it i get
ora-02019 connect description for remote database not found..
on both the database i have the same logins with the same passwords.. i have even created a serice name called orcl.vishnu.com. and it works well when connect manually.
when i use the following statement it works..
create database link link1 connect to vishnu identified by password using 'orcl.vishnu.com';
and also the insert statement works.
when i use the below statement then it fails again...
create database link link1 connect to current_user using orcl.vishnu.com...
it fails again.. saying that the userid and password is wrond...

hi,
You have must first read through the documentation and understand things, then you will understand the difference and you will not get the Issues.
http://www.psoug.org/reference/db_link.html
http://www.stanford.edu/dept/itss/docs/oracle/10g/server.101/b10759/statements_5005.htm
Wish you Happy New Year 2010...!!
- Pavan Kumar N
Oracle 9i/10g - OCP
http://oracleinternals.blogspot.com/

Urgent: How to create db link in OWB through wizard ? Where is that wizard

Hi,
I am facing problem in finding database link creation wizard in OWB.
Connectors are created. How to use them in creating database link and where is the option to create the database link in OWB?
Thank you in advance.
Regards,
Amit.

Ola Amit,
You can create database links within the ORACLE Modules you define.
Expand Databases/Oracle and right click on one of the modules.
You will see four tabs. The third will allow you to select or define database links
Select one of the already existing links or create a new one by selecting the Create DB Link button...
This is for the OWB version 10.1.x
Regards,
Moscowic

About 'create database link ...'

Dear all,
I just have forgotten to have the exact syntax for such statement. I even used this:
create database link te
connect to testdb identified by test using 'abc';
But it failed.
Thks & Rgds,
Edward

From the looks of your statement, I'm guessing that "testdb" is your instance name, and "test" is the user name. If that's right, then the statement is wrong.
It should be like this:
create database link te
connect to test identified by <tests_password> using 'abc'Of course, fill in <tests_password>.
Note that 'abc' needs to be in the local DB's tnsnames.ora file.
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Can't create database link when password has special character

I'm trying to execute the following statement within sqlplus
create database link alpha connect to scott identified by tiger! using 'db_alpha'
note that the password for the account has an exclamation point in it. the command fails. I've tried placing the password in quotes (') and double-quotes ("). The double-quotes work, but then the link fails to function properly.
We are required to have a special character in our passwords... so how do I get that special character into the password for the database link?
Thanks in advance,
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for some weird reason, I can't post the reply I want. every time I try, the forum hangs and doesn't save the message. give me a sec...
I have put the password within double quotes... so I'm starting to think the problem is something else. I've been reading other posts regarding creating database links and I've obtained limited results. Here's what I've done, and the results I'm getting.
(names changed to protect the innocent)
My oracle database is on SYSA. I'm on SYSB. I set my TWO_TASK=SYSA and just use sqlplus to connect as user1.
I want to run a command on user2's tables. Normally I would just grant read access to user1 on user2's tables and use a command like
nert spaces to get this to save (weird forum bug here, I can't delete the text to the left)
SQL> sel{color:black}{color}ect * fr{color:black}{color}om u{color:black}{color}s{color:black}{color}e{color:black}{color}r{color:black}{color}2{color:black}{color}.{color:black}{color}m{color:black}{color}y{color:black}{color}_{color:black}{color}t{color:black}{color}a{color:black}{color}b{color:black}{color}l{color:black}{color}e{color:black}{color};
However, user2 is for test data and those tables get dropped and recreated often and it is cumbersome to try to remind everyone to recreate the grants. So I can't trust that user1 will have access to user2's tables. So my goal with the database link is to create a private (for user1 only) database link and access the tables that way, that way I bypass the grant issue. This works out better for me because we only change that password every 2 months. I just recreate the database link once every two months, rather than recreate grants multiple times every week. Well, that's the theory anyway.
Back to creating the database link, I thought my issue was the special character in the password because if I remove the exclamation point everyting works (except that the password is invalid). Below is what it looks like when I do this...
Attempt #1:
SQL> create database link BLAH connect to user2 identified by "tiger" using 'BLAH';
Database link created
SQL> sel{color:black}{color}ect * fr{color:black}{color}om my{color:black}{color}_{color:black}{color}table{color:black}{color}@{color:black}{color}BLAH;
sel{color:black}{color}ect * fr{color:black}{color}om my{color:black}{color}_{color:black}{color}ta{color:black}{color}ble{color:black}{color}@{color:black}{color}BLAH
ERROR at line 1:
ORA-01017: invalid username/password; logon denied
ORA-02063: preceding line from BLAH
So that looks like it's just a password issue. If I put in the correct password... the error changes to this...
Attempt #2:
SQL> create database link BLAH connect to user2 identified by "tiger!" using 'BLAH';
Database link created
SQL> sel{color:black}{color}ect {color:black}{color}* fr{color:black}{color}om my{color:black}{color}_{color:black}{color}table{color:black}{color}@BLAH;
sel{color:black}{color}ect * fr{color:black}{color}om my{color:black}{color}_ta{color:black}{color}ble{color:black}{color}@BLAH
ERROR at line 1:
ORA-02085: database link BLAH.AAA.BB.CCC.DDD connects to
DEVDB.AAA.BB.CCC.DDD
To me, that doesn't make sense. If the link isn't working... how did it get the "invalid username/password" in Attempt #1?
Anyway, in perusing other forum posts, one post said to put in the full text from the tnsnames.ora file instead of the alias. So I do a little cut/paste and try this...
Attempt #3:
SQL> create database link BLAH connect to user2 identified by "tiger!" using
2 '(DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = server001.aaa.bb.ccc.ddd)(PORT = 9999)))
3 (CONNECT_DATA = (SERVICE_NAME = devdb)))';
Database link created.
SQL> sel{color:black}{color}ect {color:black}{color}* fro{color:black}{color}m my{color:black}{color}_{color:black}{color}tab{color:black}{color}le{color:black}{color}@BLAH;
sel{color:black}{color}ect {color:black}{color}* fr{color:black}{color}om {color:black}{color}my_{color:black}{color}tab{color:black}{color}le@B{color:black}{color}LAH
ERROR at line 1:
ORA-02085: database link BLAH.AAA.BB.CCC.DDD connects to
DEVDB.AAA.BB.CCC.DDD
Any ideas on what I'm doing wrong?
Darren

Special characters in password for "create database link"

It seems that one cannot create a DB link if the password has a special character in it (like '!')?
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To create database link to connect to remote database

Hi all
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Edited by: jarola on Aug 1, 2011 3:34 PM
See documentation
http://download.oracle.com/docs/cd/E10513_01/doc/appdev.310/e10499/advnc.htm#BABBFICH

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