SQL Array Search

Question

I have a group feature on my website that allows 1 user to put the userids of any of his or her friends into an invitedusers column. I need to do an SQL search to determine whet

Answer 1

I'm not sure if this is the best way but:

where concat(',',invitedusers,',') like '%,234,%'

So in your example ,234, is inside ,234,394,479,