[oracle@PD admin]$ ps -ef | grep smon oracle 1917 1 0 Aug21 ? 00:33:51 ora_smon_podinndb oracle 22659 22448 0 08:03 pts/2 00:00:00 grep smon [oracle@PD admin]$ lsnrctl status LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 18-NOV-2016 08:03:43 Copyright (c) 1991, 2009, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.2.25)(PORT=1521))) STATUS of the LISTENER ------------------------ Alias LISTENER Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production Start Date 21-AUG-2016 19:34:44 Uptime 88 days 12 hr. 28 min. 59 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora Listener Log File /u01/app/oracle/diag/tnslsnr/PD/listener/alert/log.xml Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.2.25)(PORT=1521))) Services Summary... Service "NCDB" has 2 instance(s). Instance "podinndb", status UNKNOWN, has 1 handler(s) for this service... Instance "podinndb", status READY, has 1 handler(s) for this service... Service "orclXDB" has 1 instance(s). Instance "podinndb", status READY, has 1 handler(s) for this service... Service "podinndb" has 1 instance(s). Instance "podinndb", status READY, has 1 handler(s) for this service... The command completed successfully [oracle@PD admin]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.1.0 Production on Fri Nov 18 08:03:44 2016 Copyright (c) 1982, 2009, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production With the Partitioning, Oracle Label Security, OLAP, Data Mining, Oracle Database Vault and Real Application Testing options SQL> show parameter service; NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ service_names string ncdb,podinndb *.audit_file_dest='/u01/app/oracle/admin/NCDB/adump' *.audit_trail='db' *.compatible='11.2.0.0.0' *.control_files='/u01/app/oracle/oradata/NCDB/controlfile/o1_mf_9z8tkd80_.ctl','/u01/app/oracle/flash_recovery_area/NCDB/controlfile/o1_mf_9z8tkd99_.ctl' *.db_block_size=8192 b_create_file_dest='/u01/app/oracle/oradata' *.db_domain='' *.db_name='NCDB' *.db_recovery_file_dest='/u01/app/oracle/flash_recovery_area' *.db_recovery_file_dest_size=5218762752 *.diagnostic_dest='/u01/app/oracle' *.dispatchers='(PROTOCOL=TCP) (SERVICE=orclXDB)' *.job_queue_processes=1000 *.log_archive_dest_1='location=/archive' *.log_archive_dest_state_1='ENABLE' *.log_archive_format='arch_%t_%s_%r.arc' *.memory_target=15458472960 *.open_cursors=1000 *.processes=1000 *.remote_login _passwordfile='EXCLUSIVE' *.service_names='ncdb,podinndb' *.undo_tablespace='UNDOTBS1' nc2012/xxxxxxxxx 2个服务名，不同业务可以连接不同的业务名这种 sqlplus nc2012/xxxxxxxxx @192.168.2.25:1521/ncdb sqlplus 直接带service连接: [oracle@PD dbs]$ sqlplus nc2012/xxxxxxxxx@192.168.2.25:1521/ncdb SQL> show parameter service; NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ service_names string ncdb,podinndb SQL> exit