Well, when I did something similar a very long time ago, I put a "next time to 
fire" column in the table. Each time an event is fired, the application updates 
that column.

Was a lot simpler than baroque searches for events that would need firing 
between the last check and now. Was a lot cleaner than creating tons of 
instances out through the future.

You could create a stored procedure, if you want, to calculate the next time 
based on all the possible criteria.

You could, have a "last time fired" column that keeps track of when the event 
was most recently fired, for logging/debugging/info. You could have a trigger 
that updates that "next time to fire" column each time the "last time fired" 
column is updated.

-- 
Scott Ribe
scott_r...@elevated-dev.com
http://www.elevated-dev.com/
(303) 722-0567 voice





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