mysql数据格式的转换

image.png

select DATE_FORMAT(create_time,'%Y%u') weeks,count(caseid) count from tc_case group by weeks; 
select DATE_FORMAT(create_time,'%Y%m%d') days,count(caseid) count from tc_case group by days; 
select DATE_FORMAT(create_time,'%Y%m') months,count(caseid) count from tc_case group by months;
 
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;

或者

select date_format(create_date, '%Y-%m') as aa,SUM(operation_balance) as money  from user_wallet_record where year(create_date) = 2019  group by month (create_date);

转载。