操作数应包含1列 – MySQL不在
作者:互联网
SELECT * from campaigns WHERE id not in
(SELECT
e.id_campaign, d.name, d.frequency, d.country, d.referral, d.bid, d.status, COUNT(e.id) AS countcap
FROM campaigns d
LEFT JOIN served e
ON d.id = e.id_campaign
WHERE
d.status = 'Active'
GROUP BY e.id_campaign
HAVING
countcap < d.frequency)
我得到错误“操作数应该包含1列” – 但我需要COUNT(e.id)
解决方法:
这总是这样的:
select *
from campaigns
where id not in (
select id_campaign from (
select e.id_campaign as id_campaign, d.frequency, e.id
from campaigns d left join served e on d.id = e.id_campaign
where d.status = 'Active'
group by e.id_campaign
having count(e.id) < d.frequency
)
)
标签:mysql,sql,mysql-error-1241 来源: https://codeday.me/bug/20190621/1254410.html