且全部字符中应该为字母和数字混合 错误描述 及 解决 办法 :: ERROR: ora-12541:TNS:没有监听器 1.没有监听程序,或者监听程序没有启动; 解决办法 ::配置监听程序或者 重启监听程序 2.监听程序已经启动,任然报错,说明 监听程序 和 数据库 启动顺序出
且全部字符中应该为字母和数字混合
错误描述
ERROR:
ERROR:
解决办法
1.cmd-----ping ip地址 查看网络问题,看能否ping通
2.cmd-----tnsping
3.cmd----netstat -na 查看1521端口是否关闭,如果关闭Windows XP中的防火墙设置中将1521端口设为例外
4.cmd----lsnrctl status
二、连接数据库时报错:ora 12541 TNS 无监听程序
外地回来,登录pl/sql出现错误:ORA-12541:TNS:无监听程序。
1.
TNSLSNR for 32-bit Windows: Version 10.1.0.2.0 - Production on 04-1月 -2010 13:38:34
Copyright (c) 1991, 2004, Oracle.
系统参数文件为D:\oracle\product\10.1.0\db_1\network\admin\listener.ora
写入D:\oracle\product\10.1.0\db_1\network\log\listener.log的日志信息
写入D:\oracle\product\10.1.0\db_1\network\trace\listener.trc的跟踪信息
跟踪级别当前为0
以 pid=7180 开始
监听: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROCipc)))
监听该对象时出错: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=pc-xxx.mail.yyy.cn)(PORT=1521)))
TNS-12542: TNS: 地址已被占用
不再监听: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROCipc)))
2.
3.
# listener.ora Network Configuration File: D:\oracle\product\10.1.0\db_1\network\admin\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
LISTENER =
把(ADDRESS = (PROTOCOL = TCP)(HOST = pc-xxx.mail.yyy.cn)(PORT = 1521))
改为(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
pc-xxx.mail.yyy.cn是计算机名
127.0.0.1也就是目前数据库正在用的ip地址。
4.
找到下列语句:
ORCL =
将(ADDRESS = (PROTOCOL = TCP)(HOST = pc-xxx.mail.yyy.cn)(PORT = 1521))
改为(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
5.
运行->cmd启动dos窗口,执行lsnrctl stop关闭,lsnrctl start启动。
ora 12541 tns 无监听程序 ORA 12541 TNS
三、导出整个oracle数据库
办公室移了,现在要把服务器(A)上的数据库导到另一个服务器(B)上,操作如下:
在B机的orcale的E:\oracle\product\10.2.0\db_1\BIN 目录里找到exp.exe 双击,出现如图1:
图1
1、输入用户名和密码(你要导出的数据库对应的用户)。注:用户名是在PLSQL登陆后在窗体右上角的全名。按enter
2、输入数组提取缓冲区大小:65536 按enter
3、输入导出文件的路径 ,如:e:\testenv20120502.cmp 按enter
4、选择导出的类型,可以根据自己的需要,我是导出全部表:(1)E(完整的数据库),(2)U(用户) 或 (3)T(表): (2)U》输入E 按enter
5、接下来的导出权限、表数据、压缩区都 直接 按enter
完成以上操作,便开始导出了,效果如图2:
等执行完成,去刚输入的路径中查看,导出的xxx.dmp是否已存在,导入后续…………

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