mysql - 子查询中的选定列(多列)未显示

select daf.id as affiliate_id,daf.name as affiliate_name,
dal.name as allocation_name,dal.id as allocation_id,dal.allocation,dal.price
from degreeamerica.affiliates daf join degreeamerica.allocations dal
JOIN(select pap.lead_price,pap.live,pap.allocation_id,pap.affiliate_id from paul.affiliates_price pap) pafp on (dal.id=pafp.allocation_id and daf.id=pafp.affiliate_id) order by daf.id;

pap.lead_price，pap.live，pap.allocation_id，pap.affiliate_id
这些列未显示在结果集中。请帮忙！！！

最佳答案

简短答案

在,pafp.lead_price,pafp.live,pafp.allocation_id,pafp.affiliate_id之前将Select添加到From的末尾

意见建议

SELECT
    daf.id AS affiliate_id,
    daf.name AS affiliate_name,
    dal.name AS allocation_name,
    dal.id AS allocation_id,
    dal.allocation,
    dal.price,
    pap.lead_price, -- add the fields you want from paul.affiliates_price
    pap.live,
    pap.allocation_id,
    pap.affiliate_id
FROM
    degreeamerica.affiliates daf
    JOIN degreeamerica.allocations dal -- what are we joining on?
    -- why create a subquery with no filters? just join to table.
    JOIN paul.affiliates_price pap ON dal.id=pap.allocation_id
        and daf.id=pap.affiliate_id
ORDER BY
    daf.id

关于mysql - 子查询中的选定列(多列)未显示，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/31169972/