Data Dungeon
← Null Cathedral

Chamber 51 · Absence Choir

Twin Psalms

UNION ALL keeps duplicates

UNION ALLORDER BY+300 XP
Locked

Clear the previous chamber to unlock this one. You can still preview the briefing.

Briefing

UNION dropped duplicates in the Lockward. UNION ALL stacks every verse — morning and evening, repeats included.

Objective

Return a single verse column from morning_psalms UNION ALL evening_psalms, ordered by verse.

Hint

UNION ALL evening_psalms, then ORDER BY verse.

Chamber schema

morning_psalms2 cols

Verses sung at matins

idverse
evening_psalms2 cols

Verses sung at vespers

idverse
chamber_51.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.