sqlite - 在Sqlite中添加基于类别的汇总行

Question

是否可以使用 group by 在行中添加摘要：具体来说，我正在寻找以下输出。

主表

Client|Billing
--------------
a     |   34
a     |   27
b     |   29
b     |   27
c     |   28
c     |   37

输出应如下所示：

Client|Billing
--------------
a     |  34
a     |  27
Total |  61
b     |  29
b     |  27
Total |  56
c     |  28
c     |  37
Total |  65

这里第一个总数是客户 a 的计费总和，类似地，接下来的 2 个总数分别是客户 b 和 c 的总和。

我可以使用以下代码实现类似的要求：select cast(Client as varchar(10)) Client, Billing from mydata union all select 'Total', sum(Billing) from mydata group by Client

但是总行数在最后，如下所示:(

  Client|Billing
    a   |34
    a   |27
    b   |29
    b   |27
    c   |28
    c   |37
Total   |61
Total   |56
Total   |65

Answer 1

检查这个。

    select * from mydata 
    union 
    select (Client ||'_Total') Client 
    ,SUM(Billing)sum from mydata 
    group by Client 
    order by Client

Answer 2

要正确排序“总计”列，您必须保留客户名称，以便以后可以按其排序；该OrderNr列用于在同一客户端的其他行之后对总计进行排序：

SELECT DisplayName AS Client,
       Billing
FROM (SELECT Client AS DisplayName,
             Client,
             Billing,
             1 AS OrderNr
      FROM MyTable

      UNION ALL

      SELECT 'Total',
             Client,
             sum(Billing),
             2 AS OrderNr
      FROM MyTable
      GROUP BY Client)
ORDER BY Client,
         OrderNr;

Answer 3

我在sqlite中转换 @mr.bhosale 的答案

尝试这个

    select * from table_name
    union
    select Client || '_Total' Client ,SUM(Billing)sum from table_name
    group by Client
    order by Client

Answer 4

select * from mydata 
  union
  select (Client ||'_Total') Client ,SUM(Billing)sum from mydata
  group by Client
  order by Client