ORA-12514: TNS:listener does not currently know of service requested in connect descriptor

在window7 64bit下安装oracle11g安装正常,安装完了以后使用也正常；
但在计算机重启后，重新登陆时就出现PL/SQL Deveplor

ORA-12514: TNS:listener does not currently know of service

requested in connect descriptor。

网上查下，用以下办法解决：
在安装目录下: /home/oracle/oracle/product/11.1.2/db_1/network/admin/listener.ora
将：SID_LIST_LISTENER=
    (SID_LIST =
      (SID_DESC =
         (SID_NAME = PLSExtProc)
         (ORACLE_HOME = E:\oracle\product\11.1.2\Db_1)
         (PROGRAM =extproc)
        )
    )

改为：
SID_LIST_LISTENER =
    (SID_LIST =
        (SID_DESC =
         (SID_NAME = PLSExtProc)
         (ORACLE_HOME = E:\oracle\product\11.1.2\Db_1)
         (PROGRAM = extproc)
        )
        (SID_DESC =
         (GOLBAL_DBNAME= orcl)
         (ORACLE_HOME = E:\oracle\product\11.1.2\Db_1)
         (SID_NAME=orcl)
        )
    )

然后重启服务和监听以后，登陆正常。