We have SUN Solaris server with ORACLE 9iR2 installed on it. This server have two ORACLE SID (two instances) prdb and training. Both instances can be connect from client by SQL/plus and OEM. The problem is prdb instance can connect by JDBC, but training can't. Does anyone know why? Thanks. Connection string are: jdbc:oracle:thin:@prdb1:1521:prdb jdbc:oracle:thin:@prdb1:1521:training (not working) __________________________________ Yahoo! FareChase: Search multiple travel sites in one click. http://farechase.yahoo.com -- //www.freelists.org/webpage/oracle-l