mysql case when * else end

分条件计算总数

SELECT
   -- SUM(case when TransactionType='账户支出' then AmoutPrice else  END) as am,
   -- SUM(case when TransactionType='在线支出' then OnlinePrice else  END) as om ,
   -- SUM(case when TransactionType='账户+在线' then price else  END) as aom ,
   -- SUM(case when PayPlatform= then AmoutPrice else  END) as aaom ,
   SUM(case when PayPlatform= then OnlinePrice else  END) as pam,
   SUM(case when PayPlatform= then OnlinePrice else  END) as wom ,
   SUM(case when Type='购买版权' then price else  END) as bm,
   SUM(case when Type='PVMode' then price else  END) as sm ,
   SUM(Price)as allm

from us_c c INNER JOIN us_s u on c.UserId=u.Id
where u.UserState<> AND c.AddTime>'2017-5-5' and c.AddTime<'2017-8-18' ORDER BY c.AddTime DESC;