mysql获取今天每1小时或者每半小时，最近一周的数据统计

一：获取当日每隔一小时的数据记录

SELECT DATE_FORMAT(createtime, '%H') triggerDay, COUNT(rid) triggerCount
FROM zz_access
WHERE TO_DAYS(createtime) = TO_DAYS(NOW())
GROUP BY triggerDay
ORDER BY triggerDay ASC;

 

 

 

二：通用 ，获取每半小时的数据记录

SELECT HOUR(CREATETIME)AS H,FLOOR(MINUTE(CREATETIME)/30) AS M, COUNT(*) AS COUNT 
FROM ZZ_ACCESS
WHERE TO_DAYS(CREATETIME) = TO_DAYS(NOW())
GROUP BY FLOOR(MINUTE(CREATETIME)/30),HOUR(CREATETIME) 
ORDER BY H,M;

三：获取最近一周的统计记录

SELECT DATE_FORMAT(createtime, '%m-%d') days, COUNT(rid) counts
FROM zz_access
WHERE DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= DATE(CREATETIME)
GROUP BY days
ORDER BY days ASC;