Question

I have a table of users updated everyday – I want to get every 160th user.

I know I need to do a count to see if there are above 160 or 320 users so then I can take that user out but how would this formula work?

Do I divide the count of users by 160?

But how do I know whether its the 160th or 320th user is need?

This check is going to happen after every user signs up, so once the user is added to the db I need to see if they are a multiple of 160 then send them an email basically (db users can go over 165000).

Answer 1

There is a simple way in knowing if the user is 160th.

if (userCount % 160 == 0)
        {
            //User is 160th user, or 320, 480 etc...
        }

This will validate if user is dividable by 160 with no decimals.
More info about modulo : http://www.dotnetperls.com/modulo