Kostyakoder

DELIMITER //
CREATE PROCEDURE INFLUENCE_OF_TIME_OF_DAY()
BEGIN
  SELECT 
    CASE
      WHEN HOUR(time) BETWEEN 6 AND 11 THEN "Утро"
      WHEN HOUR(time) BETWEEN 12 AND 17 THEN "День"
      WHEN HOUR(time) BETWEEN 18 AND 23 THEN "Вечер"
      ELSE "Ночь"
    END AS time_of_day,