https://stackoverflow.com/questions/12089431/database-table-design-for-scheduling-tasks [Again and Again! Managing Recurring Events In a Data Model ](https://www.vertabelo.com/blog/again-and-again-managing-recurring-events-in-a-data-model/) ✔︎ <img width="1007" alt="image" src="https://user-images.githubusercontent.com/1049271/80781797-4e237500-8ba6-11ea-80b3-f27fbc9cd71f.png"> [Laying out a database schema for a calendar application](https://stackoverflow.com/questions/947272/laying-out-a-database-schema-for-a-calendar-application)
