ORACLE按表字段值的不同統計數量

select p.id comperitorId,p.compcorp competitorName,
sum(case when c.kindname = 'ATM' then c.num else 0 end)  atm,
sum(case when c.kindname = 'CRS' then c.num else 0 end)  crs,
sum(case when c.kindname = 'VTM' then c.num else 0 end)  vtm,
sum(case when c.kindname = '清分機' then c.num else 0 end) sorter,
sum(case when c.kindname = '軟件' then c.num else 0 end) software,
sum(case when c.kindname = '其它' then c.num else 0 end) other,
m.iscommunication iscommunication
from compproduct c 
join competitor p on c.competitor_id=p.id 
join (select f.custid,t.companyid,t.iscommunication from technologycompany t join technology_flow f on f.id=t.flowid) m on c.competitor_id=m.companyid and c.cust_id=m.custid 
where c.cust_id='7649' 
group by p.id,c.competitor_id,p.compcorp,m.iscommunication