ASP.NET start-up page to record user details in database

Question

I need to insert a record (username, department) in the backend SQL database table everytime a user enter a ASP.NET website (only if user is unique in the table).

I'm a newbie to ASP.NET - where is the page/function that is only run ONCE per user session in which I could enter codes to capture this detail? The user could enter the site from a number of pages.

Your help would be much appreciated!

Answer 1

its not on a page. it is in global.asax as

void Session_OnStart() {
   // your code goes here.
}