我在开发计算机上本地运行Oracle 11g实例,并且可以直接通过SqlPlus连接到本地实例:
c:\>sqlplus ace
SQL*Plus: Release 11.2.0.2.0 Production on Mon Mar 11 11:50:20 2013
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Enter password:
Connected to:
Oracle Database 11g Express Edition Release 11.2.0.2.0 - Beta
SQL> select count(*) from my_table ;
COUNT(*)
----------
5297
但是我无法通过侦听器连接到它:
c:\>sqlplus -L "user/pw@(DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = XE)))"
SQL*Plus: Release 11.2.0.2.0 Production on Mon Mar 11 11:52:40 2013
Copyright (c) 1982, 2010, Oracle. All rights reserved.
ERROR:
ORA-12514: TNS:listener does not currently know of service requested in connect
descriptor
SP2-0751: Unable to connect to Oracle. Exiting SQL*Plus
同样,如果我通过SqlDeveloper连接,则会收到一个错误(尽管ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
)。
直到今天(星期一早上),此实例一直稳定运行了一年或更长时间。我们公司的IT有时有时会在周末推送新的策略和更新,因此我假设情况有所变化,但是我无法解决问题。
我已经多次重新启动了服务和侦听器,侦听器日志未提供任何线索。
侦听器似乎很好:
c:\>lsnrctl status
LSNRCTL for 32-bit Windows: Version 11.2.0.2.0 - Beta on 11-MAR-2013 11:55:33
Copyright (c) 1991, 2010, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 11.2.0.2.0 - Beta
Start Date 11-MAR-2013 11:17:30
Uptime 0 days 0 hr. 38 min. 3 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Default Service XE
Listener Parameter File C:\oraclexe\app\oracle\product\11.2.0\server\network\admin\listener.ora
Listener Log File C:\oraclexe\app\oracle\diag\tnslsnr\FBC305BB46560\listener\alert\log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=machine.domain.com)(PORT=1521)))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
Instance "CLRExtProc", 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
1521端口似乎还可以:
c:\>netstat -an -O | find /i "1521"
TCP 0.0.0.0:1521 0.0.0.0:0 LISTENING 4368
TCP 169.243.90.109:55307 159.185.207.100:1521 ESTABLISHED 12416
TCP [::]:1521 [::]:0 LISTENING 4368
(PID 4368是TNSLSNR.exe进程。)
另外,我可以tnsping
去XE服务:
c:\>tnsping xe
TNS Ping Utility for 32-bit Windows: Version 11.2.0.2.0 - Beta on 11-MAR-2013 12:27:47
Copyright (c) 1997, 2010, Oracle. All rights reserved.
Used parameter files:
C:\oraclexe\app\oracle\product\11.2.0\server\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = machine.domain.com)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = XE)))
OK (210 msec)
该listenerr.ora
文件中:
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = C:\oraclexe\app\oracle\product\11.2.0\server)
(PROGRAM = extproc)
)
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = C:\oraclexe\app\oracle\product\11.2.0\server)
(PROGRAM = extproc)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = machine.domain.com)(PORT = 1521))
)
)
DEFAULT_SERVICE_LISTENER = (XE)
另外,我不知道它是否相关,我似乎无法访问顶点https://127.0.0.1:8080/apex
(即使该权限似乎还不错)。
那么我还应该去哪里呢?
使用请求的信息进行更新:
SQL> show parameter service_names
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
service_names string XE
SQL> show parameter local_listener
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
local_listener string
UPDATE2:如@ miracle173正确地指出,听者不罚款。使用更新的“ local_listener”参数,现在可以显示更多信息:
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=machine.domain.com)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
Instance "CLRExtProc", 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...
Service "XEXDB" has 1 instance(s).
Instance "xe", status READY, has 1 handler(s) for this service...
Service "xe" has 1 instance(s).
Instance "xe", status READY, has 1 handler(s) for this service...
The command completed successfully
INSTANCE_NAME
初始化参数和ORACLE_SID
环境变量的值是什么?您的数据库由于某种原因未在默认侦听器中注册。尝试发出alter system register;
,然后重新连接到数据库。