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[DB] postgresql Count 함수 사용하기
SELECT COUNT(CASE WHEN score BETWEEN 9 AND 10 THEN 1 END) AS excellent_score, COUNT(CASE WHEN score BETWEEN 7 AND 8 THEN 1 END) AS good_score, COUNT(CASE WHEN score BETWEEN 1 AND 6 THEN 1 END) AS bad_score, COUNT((CASE WHEN score BETWEEN 1 AND 6 THEN 1 END) AND (CASE WHEN A = false AND B = false AND C = false THEN 1 END)) AS bad_score_unconfirmed, COUNT(CASE WHEN score IS NULL OR ..
Database
2024. 12. 19. 14:44