If it were not a date *interval*, I would suggest a UNIQUE constraint on multiple columns.
However, since it is an interval, I don't think there is any mechanism in SQL (H2 or otherwise) that will help you. I think you need to do it on client-side code, by performing a separate SELECT query before inserting a reservation. -- You received this message because you are subscribed to the Google Groups "H2 Database" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/h2-database. For more options, visit https://groups.google.com/d/optout.
