salix/db/routines/bs/functions/tramo.sql

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DELIMITER $$
CREATE OR REPLACE DEFINER=`root`@`localhost` FUNCTION `bs`.`tramo`(vDateTime DATETIME)
RETURNS varchar(20) CHARSET utf8mb3 COLLATE utf8mb3_unicode_ci
NOT DETERMINISTIC
NO SQL
BEGIN
DECLARE vTramo VARCHAR(20);
DECLARE vHour INT;
SET vHour = HOUR(vDateTime) ;
SET vTramo =
CASE
WHEN vHour BETWEEN 0 AND 14 THEN 'Mañana'
WHEN vHour BETWEEN 15 AND 24 THEN 'Tarde'
END ;
RETURN vTramo;
END$$
DELIMITER ;