Chamber 43 · Structure Vault
Cross Index
JOIN with IN
INNER JOININ+225 XP
Locked
Clear the previous chamber to unlock this one. You can still preview the briefing.
Briefing
Join tomes to shelves, but only wings in ('North', 'East') — JOIN and IN together.
Objective
Return tome title and shelf label for shelves.wing IN ('North', 'East'), ordered by title.
Hint
INNER JOIN shelves, WHERE wing IN ('North', 'East'), ORDER BY title.
Chamber schema
tomes3 colsIndexed tomes
idtitleshelf_id
shelves3 colsShelves by wing
idlabelwing
chamber_43.sql
Results appear here after you run a query. Correct rows alone are not enough — the Warden must seal your loot.
Ask the Warden
AI SQL coach — hints and fail reviews, not spoilers
Warden
I am the Warden. Ask for a hint, paste a failing query, or request a review — I won't hand you the full answer.