（mysql）根据时间段获取连续日期，通过左连接便于每日统计

代码：

SELECT DATE_ADD(start_date, INTERVAL (a.a + (10 * b.a) + (100 * c.a)) DAY) AS `date`
FROM (SELECT '2024-02-24' AS start_date, '2024-03-11' AS end_date) AS input
CROSS JOIN
(
SELECT 0 AS a UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL
SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9
) AS a
CROSS JOIN
(
SELECT 0 AS a UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL
SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9
) AS b
CROSS JOIN
(
SELECT 0 AS a UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL
SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9
) AS c
WHERE DATE_ADD(start_date, INTERVAL (a.a + (10 * b.a) + (100 * c.a)) DAY) <= end_date

效果图：