Hi friends, I am having the following problem while selecting data trhu the dblink My oracle version is 9.0.2 and I am creating dblink to the database version 8.1.7 ie KPIT. CREATE PUBLIC DATABASE LINK KPIT CONNECT TO SCOTT IDENTIFIED BY TIGER USING 'KPIT'; Database link created. But I am unable to see the remote data...... SQL> SELECT * FROM EMP@KPIT; SELECT * FROM EMP@KPIT * ERROR at line 1: ORA-12154: TNS:could not resolve service name Help .. and thanks in advance.... Srinivas -- //www.freelists.org/webpage/oracle-l