tnsnames.ora文件內容：
PROD1 =
(DESCRIPTION=
(ADDRESS=(PROTOCOL=tcp)(HOST=gzrip1.oracle.com)(PORT=1521))
(CONNECT_DATA=(SERVICE_NAME=PROD1.us.oracle.com)
(SERVER=dedicated)
)
)
連接方法：
sqlplus sys/oracle@gzrip1.oracle.com（長主機名）:1521/PROD1.us.oracle.com as sysdba
sqlplus sys/oracle@gzrip1（短主機名）:1521/PROD1.us.oracle.com as sysdba
sqlplus sys/oracle@IP地址:1521/PROD1.us.oracle.com as sysdba
sqlplus sys/oracle@PROD1（網絡服務名） as sysdba