"Go" ora-12545: the solution to the connection failure because the target host or object does not exist.

ORA-12545: Because the target host or object does not exist,

Cause: The machine name has been changed after the appearance of

Solutions for online reference

1. Search your Oracle installation directory and find these two files Tnsnames.ora and Listener.ora Remember to change both files, and there is an uppercase tnsnames.ora that doesn't care. Their path is as follows: F:\app\May\product\11.1.0\db_1\NETWORK\ADMIN This is my path, can find these two files on the line, they in the same directory, editing these two files, the inside of the host= Change to your computer name on the line. Notice there are multiple, look carefully. or change to IP, the next time IP attention to change to a unified

2. If logged in at this time, will certainly prompt you no listener, that is the service of monitoring is not open, to the computer service that

Access to the Service method: Control Panel-〉 management Tool-〉 Service (the two Gears of the icon), and then find Oracleorahome92tnslistener this service, it started, just fine.

"Go" ora-12545: the solution to the connection failure because the target host or object does not exist.