MySQL 按日、周、月分组统计数据

按日、周、月统计数据SQLhtml /*查询最近7天数据信息（按天分组）*/ select count(d.acct_id),d.acct_old_time from developer d where 1=1 and DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= date(d.acct_old_time) GROUP BY d.acct_old_time /*查

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