MySQL中如何查询最近24小时. where visittime >= NOW() - interval 1 hour; 昨天. where visittime between CURDATE()-interval 1 day and CURDATE(); 最近7天. where visittime between CURDATE()-interval 7 day ; 上周. where week(visittime)= week(CURDATE()-interval 7 day ) and
SELECT HOUR(e.time) as Hour,count(*) as Count FROM error_log e WHERE e.date = '2017-09-02' GROUP BY HOUR(e.time) ORDER BY Hour(e.time); 下面是查询结果截图 在另一篇文章里,我总结了查询每半小时统计一次的方法.Mysql 查询一天中每半小时记录的数量
SELECT HOUR(e.time)as Hour,FLOOR(MINUTE(e.time)/30) as M, COUNT(*) as Count FROM error_log e WHERE e.date = '2017-09-02' GROUP BY FLOOR(MINUTE(e.time)/30),HOUR(e.time) ORDER BY Hour(e.time); floor函数是mysql 的向下取整函数 如 floor(1.2) = 1 以下是运行结果: 要查看每小时统计,请看
mysql查询当天的所有信息: select * from test where year(regdate)=year(now()) and month(regdate)=month(now()) and day(regdate)=day(now())这个有一些繁琐,还有简单的写法: select * from table where date(regdate) = curdate();另一种写法没测试过查询当天的记录 select * from hb_article_view where TO
mysql查询当天的所有信息: select * from test where year(regdate)=year(now()) and month(regdate)=month(now()) and day(regdate)=day(now())这个有一些繁琐,还有简单的写法: select * from table where date(regdate) = curdate();另一种写法没测试过查询当天的记录 select * from hb_article_view where TO
mysql查询当天的所有信息: SELECT * FROM 表名 WHERE year(时间字段名)=year(now()) and month(时间字段名) = month(now()) and day(时间字段名) = day(now()); 这个有一些繁琐,还有简单的写法: SELECT * FROM 表名 WHERE date(时间字段名) = curdate(); 另一种写法没测试过 查询当天的记录 SELECT * FROM 表名 WHERE TO_DAYS(时间字段名) = TO_