We have an application running locally where we’re experiencing the following error:
ORA-12514: TNS:listener does not currently know of service requested
in connect descriptor
I’ve tested the connection using TNSPing which resolved correctly and
I tried SQLPlus to try connecting, which failed with the same error as above. I used this syntax for SQLPlus:
sqlplus username/password@addressname[or host name]
We have verified that:
- the TNS Listener on the server is running.
- Oracle itself on the server is running.
We don’t know of any changes that were made to this environment.
Anything else we can test?