如何获取过去x周每种类型的数据？

debugcn 发表于 Dev

安迪

我在下面的查询中为我提供了三列数据- type，amount以及total上周使用week_number列的数据。

select type,
case
WHEN (type = 'PROC1' AND contractdomicilecode = 'UIT') THEN 450
WHEN (type = 'PROC1' AND contractdomicilecode = 'KJH') THEN 900
WHEN (type = 'PROC2' AND contractdomicilecode = 'LOP') THEN 8840
WHEN (type = 'PROC2' AND contractdomicilecode = 'AWE') THEN 1490
WHEN (type = 'PROC3' AND contractdomicilecode = 'MNH') THEN 1600
WHEN (type = 'PROC3' AND contractdomicilecode = 'LKP') THEN 1900
END as amount,
total
from xyz.orders pa
join
(select clientid as clientid, max(version) as version
from xyz.orders where consumerid IN (select distinct entity_id from abc.items
where week_number = extract(week from current_date) - 1
and item_type like '%Ionize - Data%' )
and createdfor ='BLOCK'
and holder='RELAY_FUTURES'
group by clientid) pb on
pa.clientid = pb.clientid and pa.version = pb.version;

下面是我上面查询时返回的输出：

type    amount      total
---------------------------
PROC1    450         1768
PROC1    900         123
PROC1    450         456
PROC2    8840        99897
PROC2    1490        2223
PROC2    8840        9876
PROC3    1900        23456
PROC3    1600        12498
PROC3    1600        28756

问题陈述

现在，我试图找出一种方法来获取过去6周（不包括当前周）的数据。基本上，我想在过去6周内针对每种类型获取amount，total如下所示。

 week   type    amount      total
----------------------------------
  46    PROC1    450         1768
  46    PROC1    900         123
  46    PROC1    450         456
  46    PROC2    8840        99897
  46    PROC2    1490        2223
  46    PROC2    8840        9876
  46    PROC3    1900        23456
  46    PROC3    1600        12498
  46    PROC3    1600        28756
  45    PROC1    450         1768
  45    PROC1    900         123
  45    PROC1    450         456
  45    PROC2    8840        99897
  45    PROC2    1490        2223
  45    PROC2    8840        9876
  45    PROC3    1900        23456
  45    PROC3    1600        12498
  45    PROC3    1600        28756
  44    PROC1    450         1768
  44    PROC1    900         123
  44    PROC1    450         456
  44    PROC2    8840        99897
  44    PROC2    1490        2223
  44    PROC2    8840        9876
  44    PROC3    1900        23456
  44    PROC3    1600        12498
  44    PROC3    1600        28756
  43    PROC1    450         1768
  43    PROC1    900         123
  43    PROC1    450         456
  43    PROC2    8840        99897
  43    PROC2    1490        2223
  43    PROC2    8840        9876
  43    PROC3    1900        23456
  43    PROC3    1600        12498
  43    PROC3    1600        28756
  42    PROC1    450         1768
  42    PROC1    900         123
  42    PROC1    450         456
  42    PROC2    8840        99897
  42    PROC2    1490        2223
  42    PROC2    8840        9876
  42    PROC3    1900        23456
  42    PROC3    1600        12498
  42    PROC3    1600        28756
  41    PROC1    450         1768
  41    PROC1    900         123
  41    PROC1    450         456
  41    PROC2    8840        99897
  41    PROC2    1490        2223
  41    PROC2    8840        9876
  41    PROC3    1900        23456
  41    PROC3    1600        12498
  41    PROC3    1600        28756

这有可能吗？

蚀刻_45

select如果表中current_date存在该列，则可以尝试将以下代码添加到查询中，紧接在第1行中的第一行之后xyz.orders：

extract(week from current_date) as week,

为了获得过去的星期数（在您的情况下为6周），将在以下行之后使用过滤器from xyz.orders pa：

where datediff(week, extract(week, current_date)-6, extract(week, current_date)+1) = 6

过滤器可能需要稍作调整，但是当您看到输出时，您应该能够找到需要调整的内容。

DATEDIFFMS docs上面的过滤器中使用的函数中的一些详细信息可能是有用的参考。

docs.microsoft.com

经过上述更改，以下是有关从原始代码添加的详细信息的更新查询和注释。

select
    extract(week from current_date) as week, -- added code
    type,
    case
        WHEN (type = 'PROC1' AND contractdomicilecode = 'UIT') THEN 450
        WHEN (type = 'PROC1' AND contractdomicilecode = 'KJH') THEN 900
        WHEN (type = 'PROC2' AND contractdomicilecode = 'LOP') THEN 8840
        WHEN (type = 'PROC2' AND contractdomicilecode = 'AWE') THEN 1490
        WHEN (type = 'PROC3' AND contractdomicilecode = 'MNH') THEN 1600
        WHEN (type = 'PROC3' AND contractdomicilecode = 'LKP') THEN 1900
    END as amount,
    total
    from xyz.orders pa
    where datediff(week, extract(week, current_date)-6, extract(week, current_date)+1) = 6 -- added code
    join
    (select clientid as clientid, max(version) as version
        from xyz.orders where consumerid IN (select distinct entity_id from abc.items
        where week_number = extract(week from current_date) - 1
        and item_type like '%Ionize - Data%' )
        and createdfor ='BLOCK'
        and holder='RELAY_FUTURES'
        group by clientid) pb on
        pa.clientid = pb.clientid and pa.version = pb.version;

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