I have set the enviroment variable correctly for the tnsnames.ora file and toad still does not recognize the file
Rt-click “My computer” -> “Properties” -> “Advanced System Settings” -> “Advanced” -> “Environment Variables”
Notice there is no trailing slash (I’m not sure if that matters). Then tnsnames.ora is in that folder.
You might also want to make sure that you don’t have another tnsnames.ora in your Oracle client’s network\admin folder.
If that all looks right, what exactly do you mean by “toad does not recognize it”. Toad doesn’t find it? Or Toad finds it but there is some problem? If there is a problem, what is it, exactly?