针对您遇到的 ORA-12545: Connect failed because target host or object does not exist 错误,以下是一些详细的排查和解决步骤,您可以按照这些步骤逐一检查并解决问题: 1. 确认ORACLE数据库服务是否启动 首先,您需要确认Oracle数据库服务是否已经在目标主机上启动。您可以通过以下几种方式进行检查: 在Linux系统上,您...
首先,登陆到连接有问题的客户端数据库上,通过sqlplus进行多次连接测试,的确会出现用户所说的ORA-12545: Connect failed because target host or object does not exist报错现象,此外,还发现登陆成功的节点显示的实例都是节点一实例servicedb1 检查数据库的listener_scan监听配置,服务servicedb下动态注册了(ready)两个实...
Oracle错误ORA12545是数据库在尝试连接到监听器时遇到的一个问题,这个错误通常表示监听器无法识别请求的服务,或者客户端无法正确地连接到监听器,下面将详细解释这一错误的原因以及可能的解决方案。 (图片来源网络,侵删) 错误描述 ORA12545的错误信息通常如下所示: ORA12545: Connect failed because target host or obje...
当使用plsqldev客户端登录Oracle数据库时,如果对应的tnsnames.ora中是直接使用IP地址来连接,并且未在系统的hosts文件中绑定主机名时,极易出现ORA-12502及ORA-12545报错,这两种错误内容分别是: ORA-12502: TNS:listener received no CONNECT_DATA from client ORA-12545: Connect failed because target host or object...
12545, 00000, "Connect failed because target host or object does not exist" // *Cause: The address specified is not valid, or the program being // connected to does not exist. // *Action: Ensure the ADDRESS parameters have been entered correctly; the ...
12545, 00000, "Connect failed because target host or object does not exist" // *Cause: The address specified is not valid, or the program being // connected to does not exist. // *Action: Ensure the ADDRESS parameters have been entered correctly; the ...
由于历史原因,应用升级需要成本,最近新上了一套oracle 10g RAC (10.2.0.5),测试时,从其他应用服务器,链接这套数据库,使用的是vip链接,发现大量报错,报错为ora-12545因目标主机或对象不存在。 ORA-12545: Connect failed because target host or object does not exist ...
更换计算机名,重新启动系统后 oracle 的监听器就无法正常启动, 总是提示ORA-12545:Connect failed beacuse target host or object does not exist,每次监听器启动完就自动又关闭。打开oracle 目录 D:\ORACLE\ora92\network\admin 下的listener.ora 文件 把HOST的值改为自己新的计算机名或者IP地址,并且把tnsnames.ora...
SQL> conn / as sysdba ERROR:ORA-12545: Connect failed because target host or object does not exist 记得昨天都连上去了，怎么回事。查看oracle进程。进程存在。说明数据库是执⾏的。[oracle@ybdbtest ~]$ ps -ef | grep ora_oracle 5013 4499 0 11:33 pts/1 00:00:00 grep ora_oracle...
3. database link created. 4.try to run the qury "select * fromsys.dual@link_name" , then am getting the error message"ORA-12545 connect failed because target host or object does not exist". I have configured the tnsnames.ora