Global_name and database link

I have Windows XP with 10.2.0.1.0
I have made my database global_name to be junk.points.com.
And, I create a database link as:
create database link preview using 'xxxxx';
the db_link is preview.point.com.
However, if I use the following command:
create database link preview.system using 'xxxxx';
the db_link is preview.system instead of preview.system.points.com.
I expect the db_link should be preview.system.points.com. Please help.
Thanks

Hi,
Specify the complete or partial name of the database link. If you specify only the database name, then Oracle Database implicitly appends the database domain of the local database.
If the value of the GLOBAL_NAMES initialization parameter is TRUE, then the database link must have the same name as the database to which it connects. If the value of GLOBAL_NAMES is FALSE, and if you have changed the global name of the database, then you can specify the global name.
Defining a CURRENT_USER Database Link: Example
The following statement defines a current-user database link to the remote database, using the entire service name as the link name:
CREATE DATABASE LINK remote.us.oracle.com
CONNECT TO CURRENT_USER
USING 'remote';
The user who issues this statement must be a global user registered with the LDAP directory service.
Please view the below document.
http://www.stanford.edu/dept/itss/docs/oracle/10g/server.101/b10759/statements_5005.htm
http://download.oracle.com/docs/cd/B28359_01/server.111/b28310/ds_admin002.htm
And please check the db links you posted one is having __.point.com
and the other one is having ___.points.com
Please make sure you are using the GLOBAL_NAMES set true and displaying correct dblink .
Hope this will be helpful :)
Thanks,
Balaji K.

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Hi Carlo,
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hi everybody....
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thanx for your reply... I alredy tried everything.. but I always get this error:
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Class Name: CacheMediator.
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(CONNECT_DATA =
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NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
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(ADDRESS_LIST =
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I repeat... I already tried almost every combination!
Thanks again
maybe this is an Oracle configuration error because I am pretty new to this RDBMS :)
another question:
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Message was edited by:
antix

Oracle Application server connection pool and database links

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Hi,
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<user-name>sa</user-name>
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<datasource>java:comp/env/jdbc/ejbJTSDataSource</datasource>
<uses-external-transaction-controller>true</uses-external-transaction-controller>
<uses-external-connection-pool>true</uses-external-connection-pool>
</login>
<external-transaction-controller-class>oracle.toplink.jts.oracle9i.Oracle9iJTSExternalTransactionController</external-transaction-controller-class>
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example) with something like:
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Pete

Jdbc (oci8) and database link ?

hello,
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DriverManager.registerDriver(new oracle.jdbc.OracleDriver());
String urlDefault = "jdbc:oracle:oci8:@DBM1.uvwendy";
String url = null;
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System.out.println (rset.getString (1));
} catch (SQLException e) {
System.out.println ("Error REMOTE SELECT ..." + e);
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Error REMOTE SELECT ...java.sql.SQLException: ORA-12154: TNS:could not resolve service name
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hello,
i try to select * from dual@DBNAME within a jdbc connection.
1. we are connected with oci8 on a 9.2.0 database
DriverManager.registerDriver(new oracle.jdbc.OracleDriver());
String urlDefault = "jdbc:oracle:oci8:@DBM1.uvwendy";
String url = null;
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rset=dblink_stmt.executeQuery ("select name from v$database@"+Database_Server+"_"+Database_SID+".UVDBM");
while (rset.next ())
System.out.println (rset.getString (1));
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System.out.println ("Error REMOTE SELECT ..." + e);
3. the error looks like this
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Error REMOTE SELECT ...java.sql.SQLException: ORA-12154: TNS:could not resolve service name
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Amit - did you get anywhere on this?

Database Link and error ORA-02019

Oracle 9.2.0.6 on Windows 2003
Has anybody encountered this before and been able to resolve.
SQL> connect SchemaA/password@NSN1
SQL> create database link MyLink1
2 connect to REMDB identified okm135
3 using 'STAF'
4 /
Database link created.
SQL> create or replace VIEW rem_mydocs as
2 (select * from mydocs@MyLink1)
3 /
View created.
SQL> grant select on rem_mydocs to UserA ;
Grant succeeded
SQL> Create or replace function fn_rem_mydocs
2 return Sys_RefCursor
3 IS
4 v_rc Sys_RefCursor;
5 begin
6 open v_rc for
7       select * from rem_mydocs ;
8 return (v_rc);
9 end;
10 /
Function created.
SQL> grant execute on fn_rem_mydocs to UserA;
Grant succeeded
SQL> connect UserA/test975@NSN1
Connected.
SQL> create or replace synonym rem_mydocs for SchemaA.rem_mydocs;
Synonym created.
SQL> create or replace synonym fn_rem_mydocs for SchemaA.sp_rem_mydocs ;
Synonym created.
SQL> select count(*) from rem_mydocs ;
COUNT(*)
      324
SQL> var g_ref refcursor
SQL> begin :g_ref := fn_rem_mydocs; end;
2 /
SQL> print g_ref
ERROR:
ORA-02019: connection description for remote database not found

Metalink Note:262881.1
The information in this article applies to:
Oracle Server - Enterprise Edition - Version: 8.0.x to 9.2.0.x
This problem can occur on any platform.
Errors
ORA 2019 connection description for
Symptoms
Describe on a Synonym which is based on a database link may issue error:
ORA-2019 connection description for remote database not found
Select from the synonym works successfully.
Cause
Based on the Bug 3071468 this issue happens when the local
and the remote database have different domain name in the GLOBAL_NAME.
For example if:
select * from global_name;
gives from local database:
PROD.UK.ORACLE.COM
and the remote database has:
TEST.US.ORACLE.COM
then we have different domains for the global_name.
This does not reproduce when the domain is the same for both global_names.
Fix
This issue is fixed in 10.1.0.2.
For previous versions we have the following 2 workarounds:
1. Use View in the place of the synonym. This works.
2. Alter one of the databases global_name , so that the 2 global_names to have the same domain.
For example in the above example chenge the TEST database as:
sql> alter database rename global_name to test.uk.oracle.com;
Then you would have to drop and recreate the database link.
References
Bug 3071468 - Ora-2019 May Occur When Describing An Synonym Using A Database Link
Regards,
Reza
Message was edited by:
Reza

Database link with the alias and full description in the connect string

Hi,
i have created database link with alias in tnsentry and full description
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Thanks

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(SERVER = DEDICATED)))
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useful link
http://www.akadia.com/services/ora_dblinks.html

Databases link name required without global_name

Hi,
My global_name is "ORCL.REGRESS.RDBMS.DEV.US.ORACLE.COM" when i create any database link the name create like "U_NET_LINK.REGRESS.RDBMS.DEV.US.ORACLE.COM"
How i eliminate global_name without edit my initora file using SQL .
Regards
Faheem

You need to check parameter global_names
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System altered.http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/initparams077.htm#CHDGEHBB
Also what's your DB_NAME and DB_DOMAIN set at?
Your global name looks rather erratic.

Global_name and database link

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