Originally Posted by
wizla
I was thinking what you was typing, agreed, I too have very limited knowledge with computers and was wondering the same.
Yes, it would seem to me that each customer would be a record in the database, an entry would be made for each stay (including the dates), and then something akin to a single call of a "COUNTIF" type function could be used to determine how many stays fall in the given period (in this case, 2019). But obviously it is not that simple, I guess...