Mysql查詢每天 每週 每月 每年的資料

-- 查詢每天的資料

select count(1) as total,date_format(create_time,'%y-%m-%d') as time from op_endor_info group by date_format(create_time,'%y-%m-%d');

-- 查詢每週的資料

select count(1) as total,week(create_time) as time from op_endor_info group by week(create_time);

-- 查詢每月的資料

select count(1) as total,month(create_time) as time from op_endor_info group by month(create_time);

-- 查詢每年的資料

select count(1) as total,year(create_time) as time from op_endor_info group by year(create_time);

-- 其他：

-- date_add(,interval expr unit)

-- date_add(create_time,interval 1 day)  得到指定日期後一天的日期/把1改為任意數字就可以得到後n天的日期

-- date_sub(,interval expr unit)

-- date_sub(create_time,interval 1 day)  得到指定日期前一天的日期/把1改為任意數字就可以得到前n天的日期

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