Home » RDBMS Server » Networking and Gateways » Re: Database Link connecting to ORACLE.US.ORACLE.COM
Re: Database Link connecting to ORACLE.US.ORACLE.COM [message #66351] Tue, 23 April 2002 02:07
Abdullah Gilani
Messages: 18
Registered: October 2001
Junior Member
#create a database link with the same name as the database it connects to, OR set global_names=false.
######################################## at Remote Server #################
SQL> alter database rename global_name TO test.com;

Database altered.

SQL> select * from global_name;

GLOBAL_NAME
-----------------------------------------------------
TEST.COM

######################################## at Local Server #################
SQL> Create Public Database Link TEST.COM connect to SYSTEM identified by MANAGER using 'ORCL';

Database link created.

### Note: where 'ORCL' is the Tnsnames String for Remote DB Server and must be exists in the Local DB tnsnames.ora file.
'TEST.COM' is the Remote Database Global Name.

SQL> select count(*) from scott.emp@test.com;

COUNT(*)
----------
8

#########################################################################

###--------- Procedure for LoopBack DB Link -------------###
declare
dbName varchar2(30);
begin
select name
into dbName
from v$database;

begin
execute immediate 'drop public database link loopback';
exception
when others then
null;
end;
execute immediate 'create public database link loopback connect to admin identified by admin using '''||dbName||'''';
end;
###--------- End Procedure for LoopBack DB Link ------------###

Written by,
Abdullah Gilani
Email: syedgilani@hotmail.com
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