DB link creation

Dear
please explain me the process of database link creation and making entry into tnsnames.ora.
I have two databases PCDB and IASDB on same server KSPCB.ORG, I want to access the IASDB database from PCDB database.what is the entry that i should make into the tnsnames.ora file before creating the db link.
I 'll be very thankfull to you if you can write down the process.
thanks

hi
the following script will create a dblink in first database whose name is local and it will be able to connect a database seconddb. you should be able to connect to second db on the first place. Donot forget to set initialization parameter global_names=false before using the dblink.
create database link LOCAL.WORLD
connect to SCOTT
using 'secondDB';
you will extract data from second db like this.
select * from scott.emp@secondDB;

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Problem in DB Link creation of Oracle Wraehouse Builder 3i - Updated question

I am facing a problem in DB Link creation.
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asistant.....)
Operating system: Windows NT 4 SERVICE PACK 6
I wants to use the scott database( default database given by oracle )
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How can I create the DB LINK ( for any other database) ?
Should I need to add anything in Setting of"ODBC DATASOURCE
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==================
Settings done:
==================
DB Link Name :prashant
Host name
Host name: my machine's ip address
port number: 1521
oracle sid: prashant ( my oracle sid)
user name:scott
password:tiger
==================
Gives error:
==================
Testing...
Failed.
Cwm Error Message: Failed in the WBAPIFactory.createDBLink()
Cwm Error: SQL Exception
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==================
==================
How should I proceed further.
I am expecting URGENT FEEDBACK.
Reply me on : [email protected] or this OTN Network
From
Prashant

I solved the problem.
Procedure I followed :
UNINSTALL ORACLE WRAEHOUSE BUILDER SOFTAWARE.
'GLOBAL_NAMES = FALSE' in init.ora file.
RESTARTED MY MACHINE.
INSTALL THE ORACLE WRAEHOUSE BUILDER SOFTAWARE.

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I am facing a problem in DB Link creation.
Backend: Oracle 8i Server on my machine
DW Software: Oracle warehouse builder 3i ( client , repository asistant.....)
Operating system: Windows NT 4 SERVICE PACK 6
I wants to use the scott database( default database given by oracle ) as my input source.
How can I create the DB LINK ( for scott database) ?
How can I create the DB LINK ( for any other database) ?
Should I need to add anything in Setting of"ODBC DATASOURCE ADMINISTRATION"
==================
Settings done:
==================
DB Link Name :scott
Host name
Host name: my machine's ip address
port number: 1521
oracle sid: prashant ( my oracle sid)
user name:scott
password:tiger
==================
Gives error:
==================
Testing...
Failed.
ORA-02085 Database link %s connects to %s
*Cause: a database link connected to a database with a different name.
The connection is rejected.
*Action: create a database link with the same name as the database it
connects to, or set global_names=false.
Please change it to false by doing :
first option:
Log in the database with DBA privilege and use the command:
alter system set GLOBAL_NAMES = false
second option:
Change the GLOBAL_NAMES to false in database system parameter file, init.ora
==================
Options tried:
==================
1. I tried to change GLOBAL_NAMES = false but still not able to create the DB LINK.
2. As per suggestion of one the friend
"A file named "Logon.Properties" under the directory $OWB_HOME/wbapp
in this file please set the property
OWBSingleUserLockUsage = false"
I tried the same but it is still not working.
How should I proceed further.
I am expecting URGENT FEEDBACK.
Reply me on : [email protected]
From
Prashant

I solved the problem.
Procedure I followed :
UNINSTALL ORACLE WRAEHOUSE BUILDER SOFTAWARE.
'GLOBAL_NAMES = FALSE' in init.ora file.
RESTARTED MY MACHINE.
INSTALL THE ORACLE WRAEHOUSE BUILDER SOFTAWARE.

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hii all
i just want to create databse link as below"create databse link linkname connect to remoteuserid identified by remote password using "........"
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copy, paste and post here for db link creation and the error returned. you can replace the username/password/host with dummy ones.
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Database link creation problem

localhost environment:
OS:windows 2000 server
Database:oracle 8.5
database name:orcl
remotehost environment:
OS:windows 2000 server
Database:oracle 8.5
database name:orac
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Here in this environment i am getting the response from both of the servers at the time of using tnsping.
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TNS Ping Utility for 32-bit Windows: Version 8.1.5.0.0 - Production on 15-APR-06 21:30:54
(c) Copyright 1997 Oracle Corporation. All rights reserved.
Attempting to contact (ADDRESS=(PROTOCOL=TCP)(HOST=azad)(PORT=1521))
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TNS Ping Utility for 32-bit Windows: Version 8.1.5.0.0 - Production on 15-APR-06 21:31:02
(c) Copyright 1997 Oracle Corporation. All rights reserved.
Attempting to contact (ADDRESS=(PROTOCOL=TCP)(HOST=pvs)(PORT=1521))
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Database link created.
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ERROR at line 1:
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[1], [], []
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Database link created.
SQL> select * from emp@REMOTE_CONNECT2;
select * from emp@REMOTE_CONNECT2
ERROR at line 1:
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help me to create the database link in between these two databases..........

Hi, I have read carefully your letter.
Firt of all, when you use 'current_user' statement you must guarantee that such users have in both databases.If users exist in both databases and the error will appear again than try create database link with the option 'PUBLIC' as follow:
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and check the creation:
SQL> COL OWNER FORMAT a10
SQL> COL USERNAME FORMAT A8 HEADING "USER"
SQL> COL DB_LINK FORMAT A30
SQL> COL HOST FORMAT A7 HEADING "SERVICE"
SQL> SELECT * FROM DBA_DB_LINKS;
OWNER DB_LINK USER SERVICE CREATED
PUBLIC REMOTE_CONNECT.US.ORACLE.COM SCOTT ORAC 17.04.06
if the error appear again than checks parameter 'open_links' for your database instance. Default is 4. Increase that number. Good luck.Let me know if something go wrong.

Database Link Creation and Acessing

i want to talk between two oracle server. i decided to go for snapshot creation with periodical refresh. For which i am having two oracle server's with different ip address located inside our office setup.
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userid scott
password tiger
second server name asil
userid scott
password tiger
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null

See link http://kr.forums.oracle.com/forums/thread.jspa?threadID=221081
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Hi,
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With Regards
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Hi,
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With Regards
Boo

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null

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I have master and detail VO , both views data is loaded in program. Now for show/hide feature, I create View Link Object and using one element from both child and master VO , View Link Object created properly.
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Please can you provide some directions.

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