OCP认证考试指南（13）：管理共享服务器

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# 启动监听，启动实例，用命令设置启用共享服务器
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$ lsnrctl start
 
$ sqlplus / as sysdba
 
SQL*Plus: Release 10.2.0.1.0 - Production on Fri Oct 3 21:19:10 2008
 
Copyright (c) 1982, 2005, Oracle.  All rights reserved.
 
Connected to an idle instance.
 
SQL> startup
ORACLE instance started.
 
Total System Global Area  264241152 bytes
Fixed Size                  1218868 bytes
Variable Size              88082124 bytes
Database Buffers          171966464 bytes
Redo Buffers                2973696 bytes
Database mounted.
Database opened.
SQL> alter system set 
  2  dispatchers='(protocol=tcp)(dispatchers=2)' 
  3  scope=spfile;
 
System altered.
 
SQL> alter system set shared_servers=3 scope=spfile;
 
System altered.
SQL> startup force;
ORACLE instance started.
 
Total System Global Area  264241152 bytes
Fixed Size                  1218868 bytes
Variable Size              88082124 bytes
Database Buffers          171966464 bytes
Redo Buffers                2973696 bytes
Database mounted.
Database opened.
 
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# 确认启动调度进程与共享服务器进程
# 可以看到调度进程（D000、D001）和三个共享服务器进程（S001、S002、S003）
# 书上共享服务器进程S开头，我电脑上怎么P开头？
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SQL> select program from v$process;
 
SQL> exit
 
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# 下面的输入相似就行了，lsnrctl确认侦听器注册了调试进程
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$ lsnrctl services
 
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 03-OCT-2008 21:20:22
 
Copyright (c) 1991, 2005, Oracle.  All rights reserved.
 
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
  Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service
    Handler(s):
      "DEDICATED" established:0 refused:0
         LOCAL SERVER
Service "ora" has 1 instance(s).
  Instance "ora", status READY, has 3 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0 state:ready
         LOCAL SERVER
      "D001" established:0 refused:0 current:0 max:972 state:ready
         DISPATCHER <machine: OracleServer, pid: 3694>
         (ADDRESS=(PROTOCOL=tcp)(HOST=OracleServer)(PORT=60422))
      "D000" established:0 refused:0 current:0 max:972 state:ready
         DISPATCHER <machine: OracleServer, pid: 3692>
         (ADDRESS=(PROTOCOL=tcp)(HOST=OracleServer)(PORT=39547))
Service "ora_XPT" has 1 instance(s).
  Instance "ora", status READY, has 3 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0 state:ready
         LOCAL SERVER
      "D001" established:0 refused:0 current:0 max:972 state:ready
         DISPATCHER <machine: OracleServer, pid: 3694>
         (ADDRESS=(PROTOCOL=tcp)(HOST=OracleServer)(PORT=60422))
      "D000" established:0 refused:0 current:0 max:972 state:ready
         DISPATCHER <machine: OracleServer, pid: 3692>
         (ADDRESS=(PROTOCOL=tcp)(HOST=OracleServer)(PORT=39547))
The command completed successfully
 
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# 远程连接，通过侦听器登录实例
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C:/>sqlplus test/test@ora
 
SQL*Plus: Release 10.2.0.3.0 - Production on 星期五 10月 3 20:23:13 2008
 
Copyright (c) 1982, 2006, Oracle.  All Rights Reserved.
 
连接到:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
 
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# 查询会返回一条记录，说明新会话经过调试进程以及会话地址
# 我这里没成功，可能是版本问题，别人在10.1的版本上成功查询出结果，我的10.2版本
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SQL> select dispatcher, saddr, circuit from v$circuit;