WP8 check SQL Azure values and perform task

WP8 check SQL Azure values and perform task

I have a plan to set up a SQL Azure database and then let my windows phone
application check some values and then if the values are good the perform
a task in the application.
My thought is that I have a database containing firstname, lastname,
signature, code1 and code2. In my application I sign in with
first,lastname and signature. Here I am thinking that the app will check
the database for first and last name and signature.
Then if firstname, lastname and a signature is a match then it get the
code1 and code2 and save it in isolated storage to be used on some needed
places in the app.