使用来自相同 table 的现有行的总和插入新行

Question

我正在编写一个 SQL 脚本并且我有这个 table

我想更新table插入一个新行这个结果

有这个公式EIGHT TYPE 1= SEVEN-(ONE+TWO+THREE+FOUR+FIVE+SIX) when TYPE = 1

如何实现？

谢谢。

Answer 1

您在找这样的东西吗？

select company, kpi, date, location, type, amount
from t
union all
select company, 'EIGHT', date, location, NULL as type,
       sum(case when kpi in ('ONE', . . . ) then amount
                when kpi in ('SEVEN') then -amount
           end)
from t
where type = 1
group by company, date, location

Answer 2

使用条件聚合将七个值相加为正值，将其他值相加为负值：

insert into mytable (company, kpi, date, location, type, amount)
  select 
    2, 'EIGHT TYPE1', 202101, 1, null,
    sum(case when kpi = 'SEVEN' then amount else -amount end)
  from mytable
  where type = 1;

使用来自相同 table 的现有行的总和插入新行

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