Database link failure.

Question

Using the grouper account, I have a database link defined as follows:
CREATE PUBLIC DATABASE LINK parent_link
CONNECT TO parent IDENTIFIED BY "password"
USING 'rem1';
... and several synonyms, one of which is defined as follows:
CREATE PUBLIC SYNONYM valid_fishery FOR parent.valid_fishery@parent_link;
I am able to log in as parent in SQL Plus and Select from valid_fishery.
But when logged in as grouper, I could not Select from valid_fishery, using either method of access:
Referenceing the table name: Select * from parent.valid_fishery@parent_link;
Referenceing the synonym: Select * from valid_fishery;
I get the message:
ORA-01017: invalid username/password; logon denied.
ORA-02063: preceding line from PARENT_LINK
This message is obviously wrong because I logged in through SQL Plus with the exact same username/password.
Clearly, something is wrong with the link, but what could it be?
Edited by: Prohan on Sep 23, 2009 9:33 AM

Answer 1

Proham,
I have seen various issues when going downward across database links (from a higher version of database, to a lower version of database). This has been probablematic over the years in various versions and with different commands that are typically fixed.
Sometimes, in the past, I have seen incorrect errors raised over db_link issues. I believe I even recall selecting from 'dual' returned an error, or when running certain commands using a procedure or package on the remote database.
First thing I'd ask to check (even though it does not seem related), is to ensure either grouper, (or public) have select access to 'parent's' tables.
Does grouper have an account in the remote database? This shouldn't matter actually since you created the link to connect to through parent.