Error while running the form

Question

Hi All,
I am using oracle 10g form builder.
I am able to connect to database.
But When running the form I am facing an error saying TNS protocol adapter error.
Can you please resolve it.
Thanks
Sunil
Edited by: user9092293 on Sep 14, 2010 10:39 PM

Answer 1

Sarah,
At runtime the Windows Registry is generally not used. In Forms versions newer than 902 most environment settings are captured from default.env. Also, adding "LOCAL" simply gives you the ability to offer a default value which won't be displayed in the login dialog (or login string). This may not always be desired behavior. Essentially, this is just a cheat. It doesn't necessarily solve the problem, but instead just works around it.
Sunil,
Although what Sarah is suggesting might solve your issue, it might not result in the desired behavior. I would recommend you first isolate and correct the problem before implementing shortcuts. In your case, the error you are seeing is often (but not always) the result of not including the connect string (db name/alias) when trying to connect or the inability to locate tnsnames.ora. So, proving this first will offer at least two thing: 1) It will help you to understand how the logon process works... 2) It illustrates what caused the problem in the first place, which may be helpful knowledge if you see this problem in the future.
Recommendation:
1. Can you connect the Builder to the db? In other words, open the Builder and from the menu select File > Connect. Enter your username, password, and Database name
2. If you can connect from within the Builder, while still connected, open your form in the Builder and click on the Run Form button found on the Builders menu/toolbar. Your form should run. If the same error appears then the problem is not related to the inclusion of the db name, as the Builder would have passed that information when the Run Form button was pressed. In this case, it suggests that the tnsnames.ora file cannot be found by the Runtime. If this is what you are seeing, refer back to my previous entry regarding updating your default.env with TNS_ADMIN.