mysql 获取规定时间段内的统计数据

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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