Bookings with a valid date range
Design a bookings table with start and end days: start_day and end_day are integers and required. The database must guarantee the end day is not before the start day. Columns: id — primary key; start_day; end_day.
Alleen CREATE/ALTER/DROP — geen afsluitende SELECT nodig.
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Deze opdracht begint zonder tabellen — je maakt ze aan via CREATE TABLE.