ORA-12514错误解决方法

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

其中LISTENER.ORA文件如下，tnsping正常，服务监听都已开启，解决方法如下

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(SID_NAME = PLSExtProc)

(ORACLE_HOME = E:\oracle\product\10.2.0\db_1)

(PROGRAM = extproc)

)

)

将上面LISTENER.ORA文件中相应部分改为如下：

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(SID_NAME = PLSExtProc)

(ORACLE_HOME = E:\oracle\product\10.2.0\db_1)

(PROGRAM = extproc)

) (SID_DESC =

(GLOBAL_DBNAME = ORCL)

(ORACLE_HOME = E:\oracle\product\10.2.0\db_1)

(SID_NAME = ORCL)

)

)

然后重启服务和listener，问题解决