先查询出日期数据(当前日期往前推12个月)

select bb.datefrom (select @num := @num + 1,date_format(adddate(date_sub(date_sub(curdate(),interval 12 month),interval 1 month),interval @num month),				'%Y-%m') as datefrom mysql.help_topic,(select @num := 0) as twhere adddate(date_sub(curdate(),interval 12 month),interval @num month) <= date_format(curdate(),'%Y-%m-%d')order by date) as bbgroup by bb.date

日期数据展示

将上方日期数据作为主表进行查询(查询当前月往前推12个月的数据)

select a.date,ifnull(b.pc_order_price,0) pc_order_price,ifnull(app_order_price,0) app_order_price,ifnull(order_price,0) order_price from 
(select bb.datefrom (select @num := @num + 1,date_format(adddate(date_sub(date_sub(curdate(),interval 12 month),interval 1 month),interval @num month),				'%Y-%m') as datefrom mysql.help_topic,(select @num := 0) as twhere adddate(date_sub(curdate(),interval 12 month),interval @num month) <= date_format(curdate(),'%Y-%m-%d')order by date) as bbgroup by bb.date) a
left join (
SELECT 	date, round((sum(pc_order_price) / 10000),4) pc_order_price,round((sum(app_order_price) / 10000),4) app_order_price,round((sum(pc_order_price) / 10000) + (sum(app_order_price) / 10000),4) order_price
FROM(SELECT-- f.pay_time,-- f.invoice_time,date_format( f.order_time, '%Y-%m' ) AS date,case when order_mode = 0then f.order_priceelse 0 end pc_order_price,case when order_mode = 1then f.order_priceelse 0 end app_order_priceFROM表名 fWHEREf.del_flag = 0 AND f.order_time >= date_sub(curdate(),interval 12 month)) r 
GROUP BYdate) b on a.date = b.date;

最终数据展示