mysql 获取规定时间段内的统计数据

mysql/' target='_blank'>mysql 获取规定时间段内的统计数据

按年统计

SELECT   count(*),   DATE_FORMAT(order_info.create_time, '%Y-%m-%d') AS count_by_date FROM   order_info WHERE   DATE_FORMAT(order_info.create_time, '%Y') = '2017' GROUP BY   count_by_date ORDER BY NULL 

按月统计

SELECT   count(*),   DATE_FORMAT(order_info.create_time, '%Y-%m-%d') AS count_by_date FROM   order_info WHERE   DATE_FORMAT(order_info.create_time, '%Y-%m') = '2017-04' GROUP BY   count_by_date ORDER BY NULL 

具体变换可以自己根据需求变更

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