Select 一个多列查询中的两个查询

Question

我遇到了问题，我想 select 一个查询中有两个不同的查询，但列不同注意：不像 union 因为 union 把这两个查询放在一列

select count(id) as lead,SUM(ol.publisher_earned) as earning from offer_process as ol 
where ol.status='Approved'  and ol.publisher_id='1738' and ol.created_at>='2021-08-01' GROUP by date(ol.created_at)

select count(ol2.id) as clicks from offer_process as ol2  where   ol2.publisher_id='1738'  and ol2.created_at>='2021-08-01' GROUP by date(ol2.created_at)

Answer 1

SELECT earning,clicks FROM
(
    select ol.publisher_id,SUM(ol.publisher_earned) as earning from offer_process as ol 
    where ol.status='Approved'  and ol.publisher_id='1738' and ol.created_at>='2021-08-01' GROUP by date(ol.created_at),ol.publisher_id
)ol
JOIN
(
    select ol2.publisher_id, count(ol2.id) as clicks from offer_process as ol2  
    where ol2.publisher_id='1738'  and ol2.created_at>='2021-08-01' GROUP by date(ol2.created_at),ol2.publisher_id
)ol2 On ol.publisher_id=ol2.publisher_id

Answer 2

请检查这个。如果 created_date 在 SELECT 子句中不需要，则丢弃它。

SELECT date(created_at) created_at
     , COUNT(publisher_id) clicks
     , SUM(CASE WHEN status='Approved' THEN publisher_earned ELSE 0 END) earning
FROM offer_process
WHERE publisher_id='1738'
    AND created_at>='2021-08-01'
GROUP BY date(created_at)

Select 一个多列查询中的两个查询

Select Two query in one query with multiple column

mysql

self-join