oracle – TNS-12505：TNS：侦听器当前不知道连接描述符中给出的

jdbc:oracle:thin:@localhost:1521:XE

最奇怪的部分是，一切工作正常，直到一个重新启动。我开始得到这个TNS-12505错误所有的时间;看看我的listener.log中的最终条目：

TNSLSNR for 32-bit Windows: Version 10.2.0.1.0 - Production on 14-APR-2011 13:46:48

Copyright (c) 1991,2005,Oracle.  All rights reserved.

System parameter file is D:oraclexeapporacleproduct10.2.0servernetworkadminlistener.ora
Log messages written to D:oraclexeapporacleproduct10.2.0servernetworkloglistener.log
Trace information written to D:oraclexeapporacleproduct10.2.0servernetworktracelistener.trc
Trace level is currently 0

Started with pid=3460
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=.pipeEXTPROC_FOR_XEipc)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=Brodyaga-PC)(PORT=1521)))
Listener completed notification to CRS on start

TIMESTAMP * CONNECT DATA [* PROTOCOL INFO] * EVENT [* SID] * RETURN CODE
14-APR-2011 13:48:54 * (CONNECT_DATA=(SID=XE)(CID=(PROGRAM=JDBC Thin Client)(HOST=__jdbc__)(USER=Brodyaga))) * (ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=58458)) * establish * XE * 12505
TNS-12505: TNS:listener does not currently know of SID given in connect descriptor
14-APR-2011 13:49:00 * (CONNECT_DATA=(SID=XE)(CID=(PROGRAM=JDBC Thin Client)(HOST=__jdbc__)(USER=Brodyaga))) * (ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=58481)) * establish * XE * 12505
TNS-12505: TNS:listener does not currently know of SID given in connect descriptor
14-APR-2011 13:49:02 * (CONNECT_DATA=(SID=XE)(CID=(PROGRAM=JDBC Thin Client)(HOST=__jdbc__)(USER=Brodyaga))) * (ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=58487)) * establish * XE * 12505
TNS-12505: TNS:listener does not currently know of SID given in connect descriptor
14-APR-2011 13:50:23 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=)(USER=Brodyaga))(COMMAND=services)(ARGUMENTS=64)(SERVICE=LISTENER)(VERSION=169869568)) * services * 0

前三个条目是我尝试从NetBeans连接。第四，通过SQL * Plus连接，工作得很好。

这里是我的listener.ora的内容：

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = D:oraclexeapporacleproduct10.2.0server)
      (PROGRAM = extproc)
    )
    (SID_DESC =
      (SID_NAME = CLRExtProc)
      (ORACLE_HOME = D:oraclexeapporacleproduct10.2.0server)
      (PROGRAM = extproc)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
      (ADDRESS = (PROTOCOL = TCP)(HOST = Brodyaga-PC)(PORT = 1521))
    )
  )

DEFAULT_SERVICE_LISTENER = (XE)

和tnsnames.ora：

XE =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = Brodyaga-PC)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = XE)
    )
  )

EXTPROC_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
    )
    (CONNECT_DATA =
      (SID = PLSExtProc)
      (PRESENTATION = RO)
    )
  )

ORACLR_CONNECTION_DATA = 
  (DESCRIPTION = 
    (ADDRESS_LIST = 
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE)) 
    ) 
    (CONNECT_DATA = 
      (SID = CLRExtProc) 
      (PRESENTATION = RO) 
    ) 
  )

并从> lsnrctl服务

C:UsersBrodyaga>lsnrctl services

LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production on 14-APR-2011 13:59
:45

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

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE)))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
  Instance "CLRExtProc",status UNKNOWN,has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0
         LOCAL SERVER
Service "PLSExtProc" has 1 instance(s).
  Instance "PLSExtProc",has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0
         LOCAL SERVER
The command completed successfully

两个Oracle服务都启动，SQL * Plus连接良好。

这个错误有一些解决方法吗？

安装Oracle XE后，一切看起来不错，但是当你发布

C:&;sqlplus / as sysdba
SQL>shutdown immediate
SQL>startup

TNS-12505: TNS:listener does not currently know of SID given in connect descriptor

该实例将不会向侦听器注册。

所以，请编辑您的listener.ora这样：

SID_LIST_LISTENER =
  (SID_LIST =
     (SID_DESC =
       (SID_NAME = XE)
       (ORACLE_HOME = C:oraclexeapporacleproduct10.2.0server)
     )
     (SID_DESC =
        (SID_NAME = PLSExtProc)
        (ORACLE_HOME = D:oraclexeapporacleproduct10.2.0server)
        (PROGRAM = extproc)
     )
     (SID_DESC =
       (SID_NAME = CLRExtProc)
       (ORACLE_HOME = D:oraclexeapporacleproduct10.2.0server)
       (PROGRAM = extproc)
     )
  )

当我在Windows 7上安装Oracle XE时，出现了此问题。在Windows XP上没有遇到此问题。一般来说，这个条目不应该是必需的，因为实例应该自动注册到监听器。在Linux(Fedora)上运行Oracle XE，无需将XE添加到sid列表。

（编辑：李大同）

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