Force the use of synonym (database link)

Hello,
I'm on a database DB_1 with the user NP.
In the NP schema I have a table TEST_TABLE.
I create a public synonym on TEST_TABLE referencing a table named TEST_TABLE in a database DB_2 (*the synonym use a dblink*).
In my DB_1 instance connected with NP user, when I run "SELECT * FROM TEST_TABLE", the result is the content of TEST_TABLE in DB_1.
Connected with NP user on DB1_instance, how can i force the use of the synonym to get the content of TEST_TABLE in DB_2 instance ? Is it possible ?
Thanks...

Pl post details of OS and database versions.
I do not believe you can achieve your requirement, unless you name the synonym something other than "TEST_TABLE". The resolution to "TEST_TABLE" will always result in the local table first - the synonym will not be included in the name resolution.
http://docs.oracle.com/cd/E11882_01/server.112/e26088/sql_elements009.htm#SQLRF51134
HTH
Srini

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SQL*Plus: Release 10.1.0.2.0 - Production on Ma Aug 15 21:28:30 2005
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Hi,
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declare
GET VARCHAR2(50);
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select OIA_GET_DESIGNATION into GET from INFODRI.OMA_IN_ARTICLES;
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Using database link in my triggers,urgent

There's DB A on ServerA,DB B on ServerB.Table TA in ServerA's DB and TB on ServerB's DB.My purpose is to synchronize usera.TA with userb.TB real time.
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I tried several times,but failed,just wondered if some privilege was not right?But I can do selection from this dblink,only in trigger there's compilation errors.
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In addition,I did some modification in my triggers to have a try.
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The same error,saying the synonym is not declared.
Any good way to realize the same thing?

Thank you for your answering first.
I don't use replication because the destination table's structure is not exactly the same as the source one.
--The selection was done in the production,connection to the source schema,then select through the dblink from the source to the dest schema,the trigger is created in source schema on source table to handle datas in destination schema's table.In lab,all is ok,no such a problem.
--I created two dblinks,one is connect to source as system user,created a public dblink "create public database link AtoB.domain using 'BTNSname';";the other is connect as UserA,"create database link AtoB.domain connect to UserB identified by UserB using 'BTNSname';".

Using database link via dbms_scheduler

Hello out there,
I have a problem calling a stored procedure via dbms_scheduler that pulls some rows over a public database link.
The setup is the following:
create public database link mediabase using 'mediabase';
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I'm not completely sure, but here is a possibility:
The [url http://docs.oracle.com/cd/E11882_01/server.112/e26088/statements_5005.htm#i2061505]docs have this to say:
>
If you specify CONNECT TO user IDENTIFIED BY password, then the database link connects with the specified user and password.
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>
Your dblink is like this:
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3) service name in tnsnames.ora file.
It seems to me that you have not specified the db_domain in init.ora file. And in that case, you need to follow these steps.
I am considering here that you have database A on server X and database B on server Y.
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db_domain=usa.com
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connect as system user.
(if your oracle sid is orcl then)
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to orcl.usa.com;
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You get the answer like this.
Orcl.usa.com
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restart the listener.
WE WILL SEE ABOUT THE CHANGES OF TNSNAMES.ORA LITTLE LATER.
Now, go to second server(server Y) and perform the same operation as defined above. i.e. Specify the db_name, db_domain in init.ora file, execute "alter database.." command for setting global_name and edit listener.ora file for new global name.
Once you do all these you need to create service on server 1 to connect to server 2 and on server2 to connect to server1.
Go to server X.
Open tnsnames.ora file and create an entry like this.
P =
(DESCRIPTION =
(ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(Host = IP address of B)(Port= 1521)))
(CONNECT_DATA = (SID = P))
Here, P is global name of P ( at both the places).
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Open tnsnames.ora file and create an entry like this.
Q =
(DESCRIPTION =
(ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(Host = IP address of A)(Port= 1521)))
(CONNECT_DATA = (SID = Q))
Here, Q is global name of Q ( at both the places).
you are all set now.
Create database link between 2 servers now.
Say these are all your settings..
Server X is having database A with global_name orcl.usa.com and server Y is having database B with global_name orcl2.us.com
Now go to server X and create db link to server Y
Create public database link orcl2.us.com using 'orcl2.us.com'
(Note. don't miss to create a service 'orcl2.us.com' in server X's tnsnames.ora file)
And go to server Y and create db link there.
Create public database link orcl.usa.com using 'orcl.usa.com'
(Note. don't miss to create a service 'orcl.usa.com' in server Y's tnsnames.ora file)
hope this helps,
If this doesn't work, feel free to contact me.
Kalpen
<BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by cindy spearman ([email protected]):
Before creating the link, I went into my init.ora file and made sure the GLOBAL_NAMES entry was false.
I then created a database link using the following:
create public database link cindy_link
connect to system identified by syspswd
using 'PRECISEI';
My link was created, but when I attempt to use it, I get the error:
ORA-02085:database link CINDY_LINK.WORLD connects to PRECISEI.WORLD
Here is the entry from my tnsnames.ora file:
PRECISEI =
(DESCRIPTION =
(ADDRESS_LINK =
(ADDRESS =(PROTOCOL = TCP)(HOST = taurus)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = precisei.world)
Here is the entry from my listener.ora file:
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = precisei.world)
(ORACLE_HOME = E:|oracle\ora81)
(SID_NAME = precisei)
(I must admit to not having a full understanding of SID_NAME vs SERVICE_NAME.) I looked in dba_db_links, and my db_link is named CINDY_LINK.WORLD instead of CINDY_LINK.
Do I have a problem in one of my files?
I would really appreciate any help.
Thanks.<HR></BLOCKQUOTE>
null

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Force the use of synonym (database link)

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