MySQL生成日期维度表

1、通过存储过程生成

DELIMITER $$
CREATE PROCEDURE dateDim(startDate DATE, endDate DATE)  
BEGIN  
    DECLARE currentDate DATE;  
    SET currentDate = startDate;  
  
    WHILE currentDate <= endDate DO  
        INSERT INTO sys_calendar (stats_day) VALUES (currentDate);  
        SET currentDate = DATE_ADD(currentDate, INTERVAL 1 DAY);  
    END WHILE;  
END $$
DELIMITER ;  
  

CALL dateDim('2022-01-01', '2030-12-31');

2、通过递归的公用表表达式生成

WITH RECURSIVE date_series AS (  
  SELECT '2023-01-01' AS date_value  
  UNION ALL  
  SELECT DATE_ADD(date_value, INTERVAL 1 DAY)  
  FROM date_series  
  WHERE date_value < '2023-12-31'  
)  
INSERT INTO date_dim (date_value)  
SELECT date_value FROM date_series;