MySql按周，按月，按日分組統計數據
select DATE_FORMAT(date,'%Y%u') weeks,count(id) count from table group by weeks; select DATE_ ...
原文：SQLServer 按日/周 統計數據條數
按日統計 SELECT CONVERT VARCHAR ,日期列, AS days,COUNT AS totalCount FROM 表 GROUP BY CONVERT VARCHAR ,日期列, ORDER BY days 按周統計 select datepart week, 日期列 AS weekCount, sum AS totalCount from 表 group by datepa ...
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