DATABASE LINK from 92060 to 102030 issue

Question

Hi All,
Question on Database link:
Database A -- 10.2.0.3.0
Database B -- 9.2.0.6.0
Created database link from 10g to 9i and it works fine as expected.
I tried from BOTH server and also a CLIENT (SQLPLUS from my PC).
Created databas elink from 9i to 10g and it works fine on server
for example:
SQL> select sysdate from dual ;
SYSDATE
10-APR-07
SQL> select sysdate from dual@<<DBLINKNAME>> ;
SYSDATE
10-APR-07
However, I'm unable to connect using SQLPLUS.
for example:
Connected to:
Oracle9i Enterprise Edition Release 9.2.0.6.0 - 64bit Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.6.0 - Production
SQL> select sysdate from dual ;
SYSDATE
10-APR-07
SQL> select sysdate from dual@daspnprd ;
select sysdate from dual@daspnprd
ERROR at line 1:
ORA-12154: TNS:could not resolve service name
Note;
=====
NO change in tnsnames.ora or LDAP.. ALL are identical
Any known issues???
Please help!!

Answer 1

Make sure you are resolving with LDAP, (check the sqlnet.ora contents) and not the local tnsnames. Verify the entry at the OID and verify that the default context being used is correct by specifying a fully qualified net service name or a full LDAP DN as the connect identifier.