sql 某列中间相同的类型累加

sql 某列当中相同的类型累加

select Sum(case when buy_status =1 then 1 else 0 end) '订购', Sum(case when buy_status =2 then 1 else 0 end) '退订',Sum(case when buy_status =6 then 1 else 0 end) '续订'from business_recordGROUP BY DATE(create_time)