I have an application that's running locally (through Oracle 11g) for the past week and it's been working fine. However, I'm now getting this: ORA-12514 TNS:listener does not currently know of service requested in connect descriptor error.
I've already tested the connection with TNSPing which resolved it but then I used SQLPlus to connect and I'm back to getting the same error. Has anyone seen this before? If so, what should I do here?