How do I deploy an SQL database on a remote server(website)

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SQL

C#3.5

database

hi,
I'm pretty new to the asp.net and sql. I made a website which uses an sql database as its backend. I publish it on IIS and the database runs. However when i upload the files from the root folder to the website root folder, the pages where the database runs display error;

Forbidden

You don't have permission to access / on this server.

Additionally, a 403 Forbidden error was encountered while trying to use an ErrorDocument to handle the request.

i tried to look for the answer on the net and even asked other people around but i still can't get a clear picture.

i'm using asp.net 2015 framework 4.0, with sqlexpress and IIS 7.5

can anyone tell me what the problem is, or if i committed any misstep during publish or deploying stage?

What I have tried:

i tried using both sqlexpress and sql local db...
i tried uploading the files from root folder of my machine to the root of the remote server.