Oracle数据库备份报错12514 Oracle数据库备份导出时 报错：ORA-12514

连接Oracle 10g错误：ORA-12514: TNS: 监听程序当前无法识别连接描述符中请求

解决方法：

1. 打开/network/admin/listener.ora文件，找到：

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(SID_NAME = PLSExtProc)

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

(PROGRAM = extproc)

)

)

2. 添加：

(SID_DESC =

(GLOBAL_DBNAME = ORACLE)

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

(SID_NAME = ORACLE)

)

3. 最后变成：

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(SID_NAME = PLSExtProc)

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

(PROGRAM = extproc)

)

(SID_DESC =

(GLOBAL_DBNAME = ORACLE)

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

(SID_NAME = ORACLE)

)

)

注意：不能添加(PROGRAM = extproc)

4. 保存文件，重启服务中的TNSListener，OK！