SQL查询以输入初始输入来计算运行中的提示

Question

我有一个如下表。每个城市都会有一行，其中TYPE = Active和Month = 0，然后将有X数的Push行开始其中Month = 0转到Month = X。在下面的示例中，X = 3。

我需要创建一个查询来生成第二张表。

基本上，对于每个城市：

• 取Active = Push的{​​{1}}和Month值，然后将它们相加以获得0 = {{ 1}}
• 然后对于每个Final，取上个月的Month值，并将其添加到第一张表中的月份0的值中。

我认为我必须使用Month和Final或Push，但是我不确定如何或从哪里开始。

SQL Fiddle似乎不起作用，因此我包含了CREATE / INSERT语句以初始化第一个表。

编辑：我发现了SUM-https://dbfiddle.uk/?rdbms=sqlserver_2014&fiddle=9dab5f207b97a318c7d0f26369a4b3ed。

第一张桌子

OVER

预期产量

ROLLUP

初始化SQL

db<>fiddle

Answer 1

您可以使用窗口功能：

select distinct city, 'final' as [type], [month], 
       sum(value) over (partition by city order by [month]) AS Value
from table t;

如样本数据所示，您只需要订购month。

Answer 2

请尝试以下查询：

SELECT city ,
       'Final' AS Type ,
       t.month ,
       t.Value
FROM   (   SELECT city ,
                  [type] ,
                  [month] ,
                  SUM(value) OVER ( PARTITION BY city
                                    ORDER BY type ,
                                             month ) AS Value
           FROM   #cities ) t
WHERE  t.type = 'Push';

结果：

+-------+-------+-------+-------+
| city  | Type  | month | Value |
+-------+-------+-------+-------+
| one   | Final |     0 |   215 |
| one   | Final |     1 |   216 |
| one   | Final |     2 |   210 |
| one   | Final |     3 |   210 |
| three | Final |     0 |   404 |
| three | Final |     1 |   409 |
| three | Final |     2 |   401 |
| three | Final |     3 |   401 |
| two   | Final |     0 |   358 |
| two   | Final |     1 |   362 |
| two   | Final |     2 |   357 |
| two   | Final |     3 |   362 |
+-------+-------+-------+-------+

Answer 3

我将使用聚合和累加总和来完成此操作

select city, 'final' as [type], [month], 
       sum(sum(value)) over (partition by city order by [month]) AS Value
from table t
group by city, month
order by city, month;

Answer 4

我没有测试此查询，但希望它将对您有所帮助。

CREATE TABLE NEWTABLE AS
SELECT a.CITY, 'Final', a.MONTH, 
       SUM(
            (
              SELECT x.VALUE
              FROM TABLE1 x
              WHERE x.MONTH <= a.MONTH
              AND x.CITY = a.CITY
            )
          ) AS VALUE

FROM TABLE1 a
WHERE a.TYPE = 'PUSH'
GROUP BY a.CITY, a.MONTH