Stuck on a Praxicraft SQL case? Post here queries, joins, window functions, PostgreSQL quirks, all of it.
- Search first your error might already have an answer
- Include the actual query and the actual error text, not a paraphrase of it
- No full solutions for live tasks hints and approaches only, see the spoiler policy
- Sandbox/environment issues (not the concept itself) are fair game to post in full, screenshots included