Q&A for users and developers of the Cardano cryptocurrency ecosystem
-- How many users have never commented on anything, -- of the users who joined in 2024? SELECT COUNT(*) FROM Users LEFT JOIN Comments ON Users.Id = Comments.UserId WHERE Comments.UserId IS NULL AND Users.CreationDate >= '2024-01-01 00:00:00' AND Users.CreationDate < '2025-01-01 00:00:00'