sql server 中使用sum函數實現統計

sql server 中使用sum函數實現統計

select MA001 as 供應商編號,MA003 as 供應商全稱,

sum(case when TAC04>0 then 1 else 0 end)as 總筆數,--當字段大於0時則爲1不然爲0，全部值求和

sum(case when TAC01>0 then 1 else 0 end)AS 驗收筆數,

sum(case when TA008>0 then 1 else 0 end) as 驗退筆數

from QMSTA left join PURCC on CC001=TA001 AND CC002=TA002

LEFT JOIN PURMA ON CC005=MA001

WHERE TA014='Y'

group by MA001,MA003

ORDER BY MA001,MA003