Last update rate update problem

Question

I have a property DateTime LastSeenthat is stored in the database the last time the user was viewed.

I have one way to remember when to update the database is to do this while checking the user during login.

Another way is that I am going to update the database every 20 minutes, where do I put this logic in asp.net mvc? Do I need to set lastupdatea cookie and check this? Where can I check this cookie, except in global.ascx. file?

How do other systems do this?

Answer 1

Google Analytics . :

a) //-, HTTP- b) ajax (a) .

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Answer 2

, , , , , .

CreateOn, CreatedBy, ModifiedOn, ModifiedBy, , , , , " .