Today in order to guide the data for a day of Oracle, began to import data errors, and then uninstall Oracle, according to the various online tutorials uninstall completely, reinstall or encounter problems:
Enterprise Manager Configuration Failure-listener is not started or the database service is not registered to the listener
Workaround:
To increase the interception of BLUEAERI-PC or IP addresses in Listener.ora, follow these steps:
1. Start Net Manager, add an address under "listener"--listener, the hostname is written to the computer name or IP, the port number is 1521, and then save.
2. Restart the monitoring service.
3. Start the database configuration Assistant "metabase option" to reconfigure EM without deleting the databases. The error is not reported when the database is created again.
Reference:
http://blog.csdn.net/redy_hello/article/details/50902098
http://blog.csdn.net/lishiyuzuji/article/details/13630499
Re-install the pits that Oracle encounters