I am start to learn Oracle DB. I just install it and use SQL Developer to connect to it. But when I use 127.0.0.1
or localhost
in the Hostname
field, I get this error:
The Network Adapter could not establish the connection (CONNECTIONID = xxx)
But when I enter the PC's IP address into the Hostname
field, I can connect to Oracle successfully.
Could you please explain how I can use 127.0.0.1
or localhost
in hostname
field to connect to to Oracle?