在MYSQL中显示所有数据

Question

我有一个查询应显示所有与where子句匹配的数据，但不幸它只显示1个数据。这是我的查询。

SELECT 
    CONCAT(member.firstName, ' ', member.middleName, ' ', member.lastName) AS name, 
    (SUM(serviceapplication.memShareCap) * (60/100))      AS total_memshare, 
    COUNT(serviceapplication.servAppID)         AS total_mem, 
    serviceapplication.memShareCap           AS memsharecap 
FROM serviceapplication 
    INNER JOIN member ON member.memID = serviceapplication.applyingMember 
WHERE serviceapplication.status = 'Active' 
     AND member.memType = 'Client' 
     AND serviceapplication.CoopInfo_coopID = '1' 

如何显示所有数据？

Answer 1

由于您使用聚合函数，即总和和计数，你缺少一个group by条款：

select concat (
     member.firstName, 
     ' ', 
     member.middleName, 
     ' ', 
     member.lastName 
     ) as name, 
    (SUM(serviceapplication.memShareCap) * (60/100)) as total_memshare, 
    COUNT(serviceapplication.servAppID) as total_mem, 
    serviceapplication.memShareCap as memsharecap 
from serviceapplication 
inner join member on member.memID = serviceapplication.applyingMember 
where serviceapplication.status = 'Active' 
    and member.memType = 'Client' 
    and serviceapplication.CoopInfo_coopID = '1' 
group by concat (
     member.firstName, 
     ' ', 
     member.middleName, 
     ' ', 
     member.lastName 
     ), 
    serviceapplication.memShareCap 

如果你想获得总数为所有成员中的每一行，然后使用子查询：

select concat (
     member.firstName, 
     ' ', 
     member.middleName, 
     ' ', 
     member.lastName 
     ) as name, 
    (
     select SUM(serviceapplication.memShareCap) * (60/100) 
     from serviceapplication 
     inner join member on member.memID = serviceapplication.applyingMember 
     where serviceapplication.status = 'Active' 
      and member.memType = 'Client' 
      and serviceapplication.CoopInfo_coopID = '1' 
     ) as total_memshare, 
    (
     select COUNT(serviceapplication.servAppID) 
     from serviceapplication 
     inner join member on member.memID = serviceapplication.applyingMember 
     where serviceapplication.status = 'Active' 
      and member.memType = 'Client' 
      and serviceapplication.CoopInfo_coopID = '1' 
     ) as total_mem, 
    serviceapplication.memShareCap as memsharecap 
from serviceapplication 
inner join member on member.memID = serviceapplication.applyingMember 
where serviceapplication.status = 'Active' 
    and member.memType = 'Client' 
    and serviceapplication.CoopInfo_coopID = '1';