oracle共享服务连接静态注册服务 - 数据库编程

oracle 共享服务连接静态注册服务

默认oracle的共享服务是注册到动态注册服务里面的
?

sys@PROD3> select * from v$version where rownum=1;

BANNER
----------------------------------------------------------------------------------------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

[oracle@server1 admin]$ cat listener.ora
# listener.ora Network Configuration File: /home/u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME =prod3.oracle.com) --这是静态注册服务
(ORACLE_HOME = /home/u01/app/oracle/product/11.2.0/db_1)
(SID_NAME =PROD3)
)
(SID_DESC =
(GLOBAL_DBNAME = PLSExtProc)
(ORACLE_HOME = /home/u01/app/oracle/product/11.2.0/db_1)
(SID_NAME = PLSExtProc)
)
)

LISTENER =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = server1)(PORT = 1521))
)

设置共享服务器：
?

alter system set DISPATCHERS = '(PROTOCOL=TCP)(DISPATCHERS=3)';

alter system set shared_server_sessions=200 scope=both;

alter system set max_dispatchers=10 scope=both;

alter system set shared_servers=10 scope=both;

alter system set max_shared_servers=30 scope=both;



[oracle@server1 admin]$ lsnrctl services

LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 20-APR-2015 15:46:17

Copyright (c) 1991, 2011, Oracle. All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=server1)(PORT=1521)))
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 "PROD3" has 1 instance(s).
Instance "PROD3", status READY, has 4 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0 state:ready
LOCAL SERVER
"D001" established:0 refused:0 current:0 max:1022 state:ready
DISPATCHER 
(ADDRESS=(PROTOCOL=tcp)(HOST=server1)(PORT=57907))
"D000" established:0 refused:0 current:0 max:1022 state:ready
DISPATCHER 
(ADDRESS=(PROTOCOL=tcp)(HOST=server1)(PORT=64757))
"D002" established:0 refused:0 current:0 max:1022 state:ready
DISPATCHER 
(ADDRESS=(PROTOCOL=tcp)(HOST=server1)(PORT=31428))
Service "prod3.oracle.com" has 1 instance(s).
Instance "PROD3", status UNKNOWN, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0
LOCAL SERVER
The command completed successfully

--静态注册服务prod3.oracle.com里面没有dispatcher,动态注册prod3里面有

cat tnsnames.ora

PROD3_S =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = server1)(PORT = 1521))
)
(CONNECT_DATA =
(server=shared)
(SERVICE_NAME =prod3.oracle.com)
)
)

PROD3 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = server1)(PORT = 1521))
)
(CONNECT_DATA =
(server=dedicated)
(SERVICE_NAME =prod3.oracle.com)
)
)

因为服务prod3.oracle.com 里面没有dispatcher，所以当你作为共享服务连接的时候会报错ORA-12523

[oracle@server1 admin]$ sqlplussys/oracle@prod3_s as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Mon Apr 20 15:48:49 2015

Copyright (c) 1982, 2011, Oracle. All rights reserved.

ERROR:
ORA-12523: TNS:l

oracle共享服务连接静态注册服务(一)