ORA-12514: TNS: 监听程序当前无法识别连接描述符中请求的服务

在使用Oracle 10G过程中，突然有一天发现报“ORA-12514: TNS: 监听程序当前无法识别连接描述符中请求的服务”

 

修改listener.ora文件

SID_LIST_LISTENER =

  (SID_LIST =

    (SID_DESC =

      (SID_NAME = PLSExtProc)

      (ORACLE_HOME = D:/ProgramFiles/oracle/product/10.2.0/db_1)

      (PROGRAM = extproc)

    )

   (SID_DESC =

    (GLOBAL_DBNAME = ORCL)

    (ORACLE_HOME = D:/ProgramFiles/oracle/product/10.2.0/db_1)  

    (SID_NAME = ORCL)

    )

  )

LISTENER =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))

    )

  )

 

修改后重启监听服务后即可