解决Oracle ORA-12505, TNS:listener does not currently know of SID given in connect

解决方法：

打开Oracle的 listener.ora 文件：

（oracle/oracle/product/10.2.0/db_1/network/admin/listener.ora）

 

修改前：

# listener.ora Network Configuration File: /app/oracle/oracle/product/10.2.0/db_1/network/admin/listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = /app/oracle/oracle/product/10.2.0/db_1)
      (PROGRAM = extproc)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
      (ADDRESS = (PROTOCOL = TCP)(HOST = suse10.site)(PORT = 1521))
    )
  )

------------------------------------------------------------------------------------------------------------------------------

修改后：

# listener.ora Network Configuration File: /app/oracle/oracle/product/10.2.0/db_1/network/admin/listener.ora # Generated by Oracle configuration tools. SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (SID_NAME = PLSExtProc) (ORACLE_HOME = /app/oracle/oracle/product/10.2.0/db_1) (PROGRAM = extproc) )  (SID_DESC =
 (GLOBAL_DBNAME = ORCL) 
 (ORACLE_HOME = /app/oracle/oracle/product/10.2.0/db_1)
 (SID_NAME = ORCL)
 ) ) LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1)) (ADDRESS = (PROTOCOL = TCP)(HOST = suse10.site)(PORT = 1521)) ) )

 

上面的红色文字是增加的内容。 (ORCL -- 是你的SID 数据库名)

重启Oracle的监听器。

问题解决。

其实我都不敢相信可以解决 可是确实解决了问题 心中狂喜，不要犹豫，改吧！！！