How to efficiently calculate consecutive dates given an original date?

Also, the SQL implementation for this would be using DATEADD.

What I would do (probably not the best solution, I'm just coming up with it right now) is to start from the initial date and use a loop: while the date you are observing is less than the current date, increment the observed date by a week (fortnight, month, year etc.). If you land on the current date, the event happens. Otherwise it's for another day.

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