hi there, am using oracle 9i and would like to ask this question, am planning to implement the prevention of multiple and simultaneous logins to a site using a single account via different computers, am planning to use a back-end table that has a members unique id and a status of 1 if he is logged in and 0 if he is not, my problem is if he doesnt log out or if he gets disconnected w/out logging off. The field will then be left 1, when it should be 0. Is there a way in oracle to have a column that will automatically update itself if it is inactive for a certain amount of time? thanks