local_listener參数有两种书写格式，提供了不同的功能。
监听文件上，1521和1526port上都有动态监听port。
[oracle@dbsv admin]$ cat listener.ora
LISTENER=
(DESCRIPTION=
(ADDRESS_LIST=
(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1521))
(ADDRESS=(PROTOCOL=ipc)(KEY=extproc))))
SID_LIST_LISTENER=
(SID_LIST=
(SID_DESC=
(GLOBAL_DBNAME=PROD)
(ORACLE_HOME=/u01/oracle)
(SID_NAME=PROD))
(SID_DESC=
(GLOBAL_DBNAME=EMREP)
(ORACLE_HOME=/u01/oracle)
(SID_NAME=EMREP))
(SID_DESC=
(SID_NAME=plsextproc)
(ORACLE_HOME=/u01/oracle)
(PROGRAM=extproc)))
LSNR2=
(DESCRIPTION=
(ADDRESS_LIST=
(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1526))
(ADDRESS=(PROTOCOL=ipc)(KEY=extproc2))))[oracle@dbsv admin]$ cat tnsnames.ora
prod=
(DESCRIPTION=
(ADDRESS_LIST=
(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(port=1521)))
(CONNECT_DATA=(SERVICE_NAME=PROD)(SERVER=dedicated)))
lsnr2 =
(DESCRIPTION=
(ADDRESS_LIST=
(ADDRESS = (PROTOCOL = TCP)(HOST = dbsv)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = dbsv)(PORT = 1526))
)
)写法一：将数据库动态注冊到单独port的监听上
alter system set local_listener='(ADDRESS=(PROTOCOL=TCP)(HOST=dbsv)(PORT=1526))';验证：
[oracle@dbsv admin]$ lsnrctl stat LSNRCTL for Linux: Version 10.2.0.2.0 - Production on 21-JUN-2014 12:09:47 Copyright (c) 1991, 2005, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1521))) STATUS of the LISTENER ------------------------ Alias LISTENER Version TNSLSNR for Linux: Version 10.2.0.2.0 - Production Start Date 21-JUN-2014 10:42:29 Uptime 0 days 1 hr. 27 min. 17 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /u01/oracle/network/admin/listener.ora Listener Log File /u01/oracle/network/log/listener.log Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1521))) (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=extproc))) Services Summary... Service "EMREP" has 1 instance(s). Instance "EMREP", status UNKNOWN, has 1 handler(s) for this service... Service "PROD" has 1 instance(s). Instance "PROD", status UNKNOWN, has 1 handler(s) for this service... Service "plsextproc" has 1 instance(s). Instance "plsextproc", status UNKNOWN, has 1 handler(s) for this service... The command completed successfully [oracle@dbsv admin]$ lsnrctl stat lsnr2 LSNRCTL for Linux: Version 10.2.0.2.0 - Production on 21-JUN-2014 12:09:59 Copyright (c) 1991, 2005, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1526))) STATUS of the LISTENER ------------------------ Alias LSNR2 Version TNSLSNR for Linux: Version 10.2.0.2.0 - Production Start Date 21-JUN-2014 10:40:53 Uptime 0 days 1 hr. 29 min. 5 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /u01/oracle/network/admin/listener.ora Listener Log File /u01/oracle/network/log/lsnr2.log Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1526))) (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=extproc2))) Services Summary... Service "PROD" has 1 instance(s). Instance "PROD", status READY, has 1 handler(s) for this service... Service "PROD_XPT" has 1 instance(s). Instance "PROD", status READY, has 1 handler(s) for this service... The command completed successfully
1521上没有动态注冊的监听库（READY）。1526port上有READY
方法二：将数据库动态注冊到一个或多个开通动态注冊服务的监听port上
在tnsnames.ora文件里写出network_name描写叙述的监听信息，如上面的lsnr2
alter system set local_listener=lsnr2;验证：
[oracle@dbsv admin]$ lsnrctl stat LSNRCTL for Linux: Version 10.2.0.2.0 - Production on 21-JUN-2014 12:13:26 Copyright (c) 1991, 2005, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1521))) STATUS of the LISTENER ------------------------ Alias LISTENER Version TNSLSNR for Linux: Version 10.2.0.2.0 - Production Start Date 21-JUN-2014 10:42:29 Uptime 0 days 1 hr. 30 min. 56 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /u01/oracle/network/admin/listener.ora Listener Log File /u01/oracle/network/log/listener.log Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1521))) (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=extproc))) Services Summary... Service "EMREP" has 1 instance(s). Instance "EMREP", status UNKNOWN, has 1 handler(s) for this service... Service "PROD" has 2 instance(s). Instance "PROD", status UNKNOWN, has 1 handler(s) for this service... Instance "PROD", status READY, has 1 handler(s) for this service... Service "PROD_XPT" has 1 instance(s). Instance "PROD", status READY, has 1 handler(s) for this service... Service "plsextproc" has 1 instance(s). Instance "plsextproc", status UNKNOWN, has 1 handler(s) for this service... The command completed successfully [oracle@dbsv admin]$ lsnrctl stat lsnr2 LSNRCTL for Linux: Version 10.2.0.2.0 - Production on 21-JUN-2014 12:13:30 Copyright (c) 1991, 2005, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1526))) STATUS of the LISTENER ------------------------ Alias LSNR2 Version TNSLSNR for Linux: Version 10.2.0.2.0 - Production Start Date 21-JUN-2014 10:40:53 Uptime 0 days 1 hr. 32 min. 37 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /u01/oracle/network/admin/listener.ora Listener Log File /u01/oracle/network/log/lsnr2.log Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1526))) (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=extproc2))) Services Summary... Service "PROD" has 1 instance(s). Instance "PROD", status READY, has 1 handler(s) for this service... Service "PROD_XPT" has 1 instance(s). Instance "PROD", status READY, has 1 handler(s) for this service... The command completed successfully两个port上的监听。就都有数据库的动态注冊（READY）了。