By submitting your email address, you agree to receive emails regarding relevant topic offers from TechTarget and its partners. You can withdraw your consent at any time. Contact TechTarget at 275 Grove Street, Newton, MA.
The problem appears to be that you do not have an appropriate entry in tnsnames for the instance you're trying to connect to. Make sure that the entry you have in tnsnames matches exactly the name you're using when you try to connect. For instance, if you're trying to connect to an instance "test", then the entry in tnsnames must be called "test".
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.