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计算2个子查询,然后按日期分组-mysql_Mysql_Sql_Database_Group By_Subquery - Fatal编程技术网

计算2个子查询,然后按日期分组-mysql

计算2个子查询,然后按日期分组-mysql,mysql,sql,database,group-by,subquery,Mysql,Sql,Database,Group By,Subquery,我有这张桌子 我想先进行子查询,然后将它们按日期分组添加到一起 预期结果如下: 我正在运行这个查询 ( SELECT DATE_FORMAT(dd1.modified_datetime,'%Y-%m-%d') as date, (v1+v2) as value FROM (SELECT modified_datetime, Sum(data->"$.amount") as v1 FROM transactions GROUP BY modifie

我有这张桌子

我想先进行子查询,然后将它们按日期分组添加到一起

预期结果如下:

我正在运行这个查询

(
SELECT DATE_FORMAT(dd1.modified_datetime,'%Y-%m-%d') as date, (v1+v2) as value FROM
    (SELECT modified_datetime, Sum(data->"$.amount") as v1
        FROM transactions
        GROUP BY modified_datetime) as dd1 ,            
    (SELECT modified_datetime, MAX(data->"$.amount") as v2
        FROM transactions
        GROUP BY modified_datetime) as dd2

    GROUP BY dd1.modified_datetime, value
)
得到这个结果


感谢您的帮助

如果我正确地跟踪了您,您可以使用
联合所有
和聚合:

select date_format(dt, '%Y-%m-%d') dt_day, sum(amount) value
from (
    select modified_datetime dt, data ->> '$.amount' amount from transactions
    union all 
    select created_datetime, data ->> '$.amount' from transactions
) t
group by dt_day
order by dt_day

在子查询和下一个查询之间使用
JOIN

(SELECT modified_datetime, Sum(data->"$.amount") as v1
    FROM transactions
    GROUP BY modified_datetime) as dd1 JOIN
(SELECT modified_datetime, MAX(data->"$.amount") as v2
    FROM transactions
    GROUP BY modified_datetime) as dd2 ON dd1.modified_datetime=dd2.modified_datetime

它的动态查询,我可能需要执行3或4个子查询,然后在它们之间执行操作->例如v1+v2-v3*v4。所以我需要先计算子查询,然后根据公式进行运算,所以它不总是和