MySQL按照不同时间分组

MySQL格式化日期： DATE_FORMAT(date, format)

date：时间字段     format：日期格式
根据format字符串格式化date值:

%S, %s 两位数字形式的秒（ 00,01, ..., 59）
%I, %i 两位数字形式的分（ 00,01, ..., 59）
%H 两位数字形式的小时，24 小时（00,01, ..., 23）
%h 两位数字形式的小时，12 小时（01,02, ..., 12）
%k 数字形式的小时，24 小时（0,1, ..., 23）
%l 数字形式的小时，12 小时（1, 2, ..., 12）
%T 24 小时的时间形式（hh:mm:ss）
%r 12 小时的时间形式（hh:mm:ss AM 或hh:mm:ss PM）
%p AM或PM
%W 一周中每一天的名称（Sunday, Monday, ..., Saturday）
%a 一周中每一天名称的缩写（Sun, Mon, ..., Sat）
%d 两位数字表示月中的天数（00, 01,..., 31）
%e 数字形式表示月中的天数（1, 2， ..., 31）
%D 英文后缀表示月中的天数（1st, 2nd, 3rd,...）
%w 以数字形式表示周中的天数（ 0 = Sunday, 1=Monday, ..., 6=Saturday）
%j 以三位数字表示年中的天数（ 001, 002, ..., 366）
%U 周（0, 1, 52），其中Sunday 为周中的第一天
%u 周（0, 1, 52），其中Monday 为周中的第一天
%M 月名（January, February, ..., December）
%b 缩写的月名（ January, February,...., December）
%m 两位数字表示的月份（01, 02, ..., 12）
%c 数字表示的月份（1, 2, ...., 12）
%Y 四位数字表示的年份
%y 两位数字表示的年份
%% 直接值“%”

1、按照月份：
select sum(total_amount) as total, date_format(stat_date, ‘%Y-%m‘)  from week_report WHERE `stat_date` BETWEEN ‘2016-11-02‘ AND ‘2017-04-30‘ group by date_format(stat_date, ‘%Y-%m‘);
select sum(total_amount) as total,date_format(stat_date, ‘%Y-%m‘)   from week_report WHERE `stat_date` BETWEEN ‘2016-12-11‘ AND ‘2016-12-22‘ group by date_format(stat_date, ‘%Y-%m‘);
获得按照月份分组进行汇总的数据。

concat()连接字符串

-- month
select CONCAT(YEAR(stat_date),‘_‘,DATE_FORMAT(stat_date,‘%m‘)) months ,sum(total_amount) as count_amount, sum(total_new_user) as count_new_user, sum(da_active_user) as count_active_user from xxx
WHERE `stat_date` BETWEEN ‘2016-01-02‘ AND ‘2017-05-30‘ group by months;

-- 季度
select CONCAT(YEAR(stat_date),‘_‘,quarter(stat_date)) qu,sum(total_amount) as count_amount, sum(total_new_user) as count_new_user, sum(da_active_user) as count_active_user from xxx
WHERE `stat_date` BETWEEN ‘2016-01-02‘ AND ‘2017-05-30‘ group by qu;

-- 周
select CONCAT(YEAR(stat_date),‘_‘,DATE_FORMAT(stat_date,‘%U‘)) weeks,sum(total_amount) as count_amount, sum(total_new_user) as count_new_user, sum(da_active_user) as count_active_user from xxx
WHERE `stat_date` BETWEEN ‘2016-01-02‘ AND ‘2017-05-30‘ group by weeks;

-- 天
select CONCAT(YEAR(stat_date),‘_‘,DATE_FORMAT(stat_date,‘%m‘),‘_‘,DATE_FORMAT(stat_date,‘%d‘)) days, sum(total_amount) as count_amount, sum(total_new_user) as count_new_user, sum(da_active_user) as count_active_user from xxx
WHERE `stat_date` BETWEEN ‘2016-01-02‘ AND ‘2017-05-30‘ group by days;

按年汇总，统计：
select sum(mymoney) as totalmoney, count(*) as sheets from mytable group by date_format(col, ‘%Y‘);
按月汇总，统计：
select sum(mymoney) as totalmoney, count(*) as sheets from mytable group by date_format(col, ‘%Y-%m‘);
按季度汇总，统计：
select sum(mymoney) as totalmoney,count(*) as sheets from mytable group by concat(date_format(col, ‘%Y‘),FLOOR((date_format(col, ‘%m‘)+2)/3));
select sum(mymoney) as totalmoney,count(*) as sheets from mytable group by concat(date_format(col, ‘%Y‘),FLOOR((date_format(col, ‘%m‘)+2)/3));
按小时：
select sum(mymoney) as totalmoney,count(*) as sheets from mytable group by date_format(col, ‘%Y-%m-%d %H ‘);
查询 本年度的数据:
SELECT * FROM mytable WHERE year(FROM_UNIXTIME(my_time)) = year(curdate())
查询数据附带季度数:
SELECT id, quarter(FROM_UNIXTIME(my_time)) FROM mytable;
查询 本季度的数据:
SELECT * FROM mytable WHERE quarter(FROM_UNIXTIME(my_time)) = quarter(curdate());
本月统计:
select * from mytable where month(my_time1) = month(curdate()) and year(my_time2) = year(curdate())
本周统计:
select * from mytable where month(my_time1) = month(curdate()) and week(my_time2) = week(curdate())
N天内记录:
WHERE TO_DAYS(NOW())-TO_DAYS(时间字段)<=N