sql 汇报任务

Question

我有一个 sql 查询，但我想改进它们。

customer number | amount |  bill |  sum1 | sum2 |  date  | .... (other components)

  1001             -130     F/001     0     -70    2016-01-01

  1001             -80      F/002    -10     0     2016-05-01

我想要如下所示。

报告中的金额被选为帐户的最新日期，但在报告中包含组件 sum1 和 sum2

customer number | amount |   sum1 | sum2 |  date | .... (other components)

  1001             -80        0     -70    2016-05-01

  1001             -80       -10     0     2016-05-01

此子查询归公司所有，我无法显示。

修正案可能看起来像这样

 SELECT 
      customer_number, 
      amount,
      sum1,
      sum2,
      date,
      (other components)
 FROM (
      (content of the report)
 ) AS raport 
 WHERE ....

我试过：

 SELECT 
      customer_number, 
      amount,
      sum1,
      sum2,
      date, 
      (other components) 
 FROM (
      (content of the report)
 ) AS raport 
QUALIFY ROW NUMBER() OVER (PARTITION customer_number, amount ORDER BY date DESC) = 1

但我没有做到。

我会征求一些建议。

Answer 1

根据给定的信息，我认为您正在寻找降序子句的顺序：

 SELECT 
  customer_number, 
  amount,
  sum1,
  sum2,
  date,
  (other components)
FROM (
  (content of the report)
 ) AS raport 
 Order By date desc

Answer 2

我不太明白你的要求，但即便如此，这也许会有帮助。在您原来的 post 中，您翻转了日期，但没有翻转 SUM1 和 SUM2 列中显示的金额。这没有任何意义，显然你犯了一个错误，但我不知道你在那里想要什么。不管怎样，下面的查询使用了 FIRST_VALUE() 分析函数，这可能就是您正在寻找的。如果最后不需要 ORDER BY 子句，只需 delete/ignore 它即可。

with
     inputs ( customer_number, amount, bill, sum1, sum2, dt ) as (
       select 1001, -130, 'F/001',   0, -70, date '2016-01-01' from dual union all
       select 1001,  -80, 'F/002', -10,   0, date '2016-05-01' from dual
     )
select customer_number, 
       first_value(amount) over (partition by customer_number order by dt desc) as amount,
       bill, sum1, sum2, dt
from   inputs
order by dt desc
;

输出:

CUSTOMER_NUMBER     AMOUNT BILL        SUM1       SUM2 DT
--------------- ---------- ----- ---------- ---------- ----------
           1001        -80 F/002        -10          0 2016-05-01
           1001        -80 F/001          0        -70 2016-01-01

sql 汇报任务

sql task of reporting

sql

teradata