在MySQL中对于时间日期的处理的函数主要是DATE_FORMAT(date,format)。可用的参数如下

注：当涉及到按日统计是，需要使用%j，而如果使用%d, %e, %w的话，那么不同月份/周里的相同值会统计在一起。

涉及到获取当前时间，则可以通过now()或者sysdate()来获取。

SELECT SYSDATE() FROM DUAL;

SELECT NOW() FROM DUAL;

按照实际需求使用group by查询即可。

结论
需统计的表结构如下：

CREATE TABLE `apilog` (

 `id` int(11) NOT NULL AUTO_INCREMENT,

 `username` varchar() DEFAULT NULL,

 `action` varchar() DEFAULT NULL,

 `params` text,

 `result` text,

 `timestamp` datetime DEFAULT NULL,

 PRIMARY KEY (`id`)

)

统计时间范围内不同分类action的数量

# 当日

SELECT action, COUNT(id) count FROM apilog WHERE DATE_FORMAT(`timestamp`,'%j') = DATE_FORMAT(now(),'%j') ORDER BY count desc;

# 当周

SELECT action, COUNT(id) count FROM apilog WHERE DATE_FORMAT(`timestamp`,'%u') = DATE_FORMAT(now(),'%u') ORDER BY count desc;

# 当月

SELECT action, COUNT(id) count FROM apilog WHERE DATE_FORMAT(`timestamp`,'%m') = DATE_FORMAT(now(),'%m') ORDER BY count desc;

# 当年

SELECT action, COUNT(id) count FROM apilog WHERE DATE_FORMAT(`timestamp`,'%Y') = DATE_FORMAT(now(),'%Y') ORDER BY count desc;

统计某分类action的时间维度数量

# 按日

SELECT action, DATE_FORMAT(`timestamp`,'%j'), COUNT(id) count FROM apilog WHERE action = 'xxx' GROUP BY DATE_FORMAT(`timestamp`,'%j')

# 按周

SELECT action, DATE_FORMAT(`timestamp`,'%u'), COUNT(id) count FROM apilog WHERE action = 'xxx' GROUP BY DATE_FORMAT(`timestamp`,'%u')

# 按月

SELECT action, DATE_FORMAT(`timestamp`,'%m'), COUNT(id) count FROM apilog WHERE action = 'xxx' GROUP BY DATE_FORMAT(`timestamp`,'%m')

# 按年

SELECT action, DATE_FORMAT(`timestamp`,'%Y'), COUNT(id) count FROM apilog WHERE action = 'xxx' GROUP BY DATE_FORMAT(`timestamp`,'%Y')

同时按action和时间维度统计

# 按日

SELECT action, DATE_FORMAT(`timestamp`,'%j'), COUNT(id) count FROM apilog GROUP BY action, DATE_FORMAT(`timestamp`,'%j')

# 按周

SELECT action, DATE_FORMAT(`timestamp`,'%u'), COUNT(id) count FROM apilog GROUP BY action, DATE_FORMAT(`timestamp`,'%u')

# 按月

SELECT action, DATE_FORMAT(`timestamp`,'%m'), COUNT(id) count FROM apilog GROUP BY action, DATE_FORMAT(`timestamp`,'%m')

# 按年

SELECT action, DATE_FORMAT(`timestamp`,'%Y'), COUNT(id) count FROM apilog GROUP BY action, DATE_FORMAT(`timestamp`,'%Y')