Close to the end of of How do I ask a good question? , we see how a poor question can be transformed into a much better one.
It doesn't go quite as far as I would like, however. The sql tag guidance says that presenting the database schema helps users to understand the queries, and may also present opportunities for improvement (e.g. to the indexes).
Could somebody more expert than I with SQL please provide some suitable data definition statements to this example to make it a true exemplar of how to present a database query question?

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