1. Reasons for the problem
In mid-April 2018, the computer was poisoned, and the system was reinstalled. After that, the oracle could not be opened. plsql was connected to the remote oracle, and there was a problem of garbled characters when the connection was modified, so the oracle and plsql were reinstalled.
2. Summary of key steps
After installing oracle, you only need to configure monitoring;
After plsql is installed, you need to configure its associated location with oracle; you can connect after that
plsql garbled code can be solved by configuring the language encoding in the registry and path at the same time
3. Summary
This time, because the password of the blog garden was also lost, I wrote this record after a few days, so I can't remember it completely. It should be recorded in time later.