Oracle数据库alter system register的用法

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Oracle数据库alter system register的用法

今天一个同事问到我,有没动态注册监听的命令,查了下,找到了alter system register的用法
1 Static Registration via set the listener.ora
2 Dynamic Instance Registration via the PMON
At instance startup time, the PMON process will use this parameter to locate a listener and
inform. it of the INSTANCE_NAME and SERVICE_NAMES.
1 At any time subsequent to instance startup, you can force a re-registration by executing the command
SQL> alter system register;
2 You will need to re-register your instance with the listener with “alter system” if you have restarted the listener, or if you started the database instance before starting the listener。(例如,数据库还启动着,这时stop listener,然后启动,就需要手动注册)
eg:
LSNRCTL> stop
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=htsolaris.ht.com)(PORT=1521)))
The command completed successfully
database is still running... then
LSNRCTL> start
Starting /export/home/oracle/product/10.2/bin/tnslsnr: please wait...
TNSLSNR for Solaris: Version 10.2.0.2.0 - Production
System parameter file is /export/home/oracle/product/10.2/network/admin/listener.ora
Log messages written to /export/home/oracle/product/10.2/network/log/listener.log
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=htsolaris.ht.com)(PORT=1521)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC0)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=htsolaris.ht.com)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Solaris: Version 10.2.0.2.0 - Production
Start Date 15-OCT-2008 16:35:24
Uptime 0 days 0 hr. 0 min. 0 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /export/home/oracle/product/10.2/network/admin/listener.ora
Listener Log File /export/home/oracle/product/10.2/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=htsolaris.ht.com)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC0)))
Services Summary...
Service "orcl" has 1 instance(s).-----Static Registration via set the listener.ora
Instance "orcl", 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
这个时候没有自动的Dynamic Instance Registration 。
通过手动实现:
sys@ORA10G>alter system register;
System altered.
这个时候没有自动的Dynamic Instance Registration 。
通过手动实现:
sys@ORA10G>alter system register;
System altered.
LSNRCTL> status
...
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=htsolaris.ht.com)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC0)))
Services Summary...
Service "ora10g" has 1 instance(s).
Instance "ora10g", status READY, has 4 handler(s) for this service... ).------------------Dynamic Instance Registration
Service "ora10g_XPT" has 1 instance(s).
Instance "ora10g", status READY, has 4 handler(s) for this service...
Service "orcl" has 1 instance(s
Instance "orcl", 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

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