SQL显示每列值更改后的摘要

Question

我有分支机构的销售数据。我想要一个SQL，它可以为我提供每个branchId的销售数据摘要，如下所示，当然BranchId很大，因此我必须使其动态化（我不能使用Union）。我被困在如何动态地更改每个分支之后添加摘要行。

+ ---------+--------+---------+-----------+
| BranchId | CashIn | CashOut | CardSales |
+ ---------+--------+---------+-----------+
| 1        |   1000 |     500 |        50 |
| 1        |    500 |    2500 |       100 |
| 1        |   1000 |     200 |       200 |
| Totals   |   2500 |    3200 |       350 |
| 5        |    100 |     500 |       500 |
| Totals   |    100 |     500 |       500 |
| 7        |    100 |     100 |       100 |
| 7        |    200 |     300 |       400 |
| Totals   |    300 |     400 |       500 |
+ ---------+--------+---------+-----------+

Answer 1

蛮力方法是进行汇总，然后对结果进行交织：

select (case when is_base = 1 then to_char(BranchId)
             else replace('Total ([BranchId])', '[BranchId]', BranchId)
        end) as BranchId, CashIn, CashOut, CardSales
from ((select BranchId, CashIn, CashOut, CardSales, 1 as is_base
       from t
      ) union all
      (select BranchId, sum(CashIn), sum(CashOut), sum(CardSales), 0 as is_base
       from t
       group by BranchId
      )
     ) t
order by t.BranchId, is_base desc;

Here是db <>小提琴。