Do Flex/Coldfusion allows us to retrieve a set of records from databse using .cfc aproach using SQL query. Appreciate if you could give some sample codes.

First of all, you need to set up the Database connection on the coldfusion server. What kind of example you do you want. Maybe, I can give you one.

Do you have an example on how to retrive multiple sets of records from the databse to a ComboBox?

Did you set up your database connection in Coldfusion server administrator?

hey check this out, right click on the page to View Source.

http://excalatedesign.com/combobox/combobox.html

Yes. I already set up The Database connection on the coldfusion server. I tried
to go to the link that you gave me. But when i tried to view the source of the
application. The website is not available.
It says:
"404 - File or directory not found.
The resource you are looking for might have been removed, had its name
changed, or is temporarily unavailable."

Try this, It should work now:
http://www.excalatedesign.com/combob.../combobox.html

I occured an error.
And the error is
"Unable to invoke CFC - The value returned from the getDataToCBox function is not of type array."