I uploaded my site on godaddy shared host. I can access this database from my management studio. I can\'t access this database from my site
I was having the same issue when accessing a published ASP.NET Web Api. In my case, I realized that when I was about to publish the Web Api, I had not indicated a connection string inside the Databases section:
So I generated it using the three dot button, and after publishing, it worked.
What is weird, is that for a long time I am pretty sure that there was no connection string in that configuration but it still worked.