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.
Kun CREATE/ALTER/DROP — ingen afsluttende SELECT nødvendig.
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Denne opgave starter uden tabeller — du opretter dem via CREATE TABLE.