我有一个相当复杂的查询，我似乎无法按顺序获得正确的组。除了分组外，一切都顺利进行。问题是我需要从中提取产品和子产品，但我还需要提取最新的交易，因为有重复的＆＃39; （它们不是真正重复的行，但是不拉动最近的交易会大大增加总和）。更具体地说，我通过内部加入最近的交易和我从表中选择的内容来拉动最近的交易：
INNER JOIN (select fp.pol_num
,MAX(fp.id_prem) id_prem
from bapu.dbo.fact_prem fp
group by fp.pol_num) max_trans_id
on fp.pol_num = max_trans_id.pol_num
and fp.id_prem = max_trans_id.id_prem
这就是弄乱我的分组。发生的事情是，所有人的总和都是＆＃39;正在与最新的子产品连在一起。因此，例如，如果策略有3个覆盖范围：一般责任，商业自动和工人补偿，则所有这三个覆盖范围的总和仅添加到已编辑的最后一行。我需要保持产品的结构 - 子产品，这样每个子产品都有正确的总和，而不是一个子产品类型显示的所有3个的总和。我已经尝试更改拉取最近事务的子查询，以及group by语句，但这似乎只是让事情有效。这是我正在运行的查询：
DECLARE @d_inforce date; SET @d_inforce = '2014-06-01'
select limit_group_list.limit_group as 'Limit Band'
,pol_dtl.product
,pol_dtl.sub_product
,SUM(COALESCE(pol_dtl.gross_premium,0)) as 'Gross Premium'
,COUNT(distinct pol_dtl.pol_num) as 'Policy Count'
,SUM(COALESCE(pol_dtl.limit,0)) as 'Limit'
from
(select pol_product.pol_num
,pol_product.product
,pol_product.sub_product
,pol_premcomm.gross_premium
,pol_premcomm.commission
,pol_premcomm.net_premium
,pol_limit.lmt_pol_s as limit
,pol_limit.Limit_Order
,pol_limit.Limit_Group
from
-- Pull product for each policy from the most recent transaction
(select fp.pol_num
,fp.product
,fp.sub_product
from bapu.dbo.fact_prem fp
INNER JOIN (select fp.pol_num
,MAX(fp.id_prem) id_prem
from bapu.dbo.fact_prem fp
group by fp.pol_num) max_trans_id
on fp.pol_num = max_trans_id.pol_num
and fp.id_prem = max_trans_id.id_prem
-- Inforce Logic
where @d_inforce between fp.d_pol_eff and fp.d_pol_exp
and fp.pol_num not in (select distinct pol_num from bapu.dbo.fact_prem where lower(trans) like 'canc%' and d_tran_eff <= @d_inforce)
) pol_product
LEFT OUTER JOIN
-- Pull premium, commission, and net_premium per policy number
(select prem_comm.pol_num as pol_num
,prem_comm.gross_premium as gross_premium
,prem_comm.commission as commission
,COALESCE(prem_comm.gross_premium,0) - COALESCE(prem_comm.commission,0) as net_premium
from
(select fp.pol_num
,SUM(CASE
WHEN fp.amt_type = 'Premium' THEN fp.amt
ELSE 0
END) as gross_premium
,SUM(CASE
WHEN fp.amt_type = 'Add_Ded' and fp.amt_desc = 'Commission' THEN fp.amt
ELSE 0
END) as commission
from bapu.dbo.fact_prem fp
group by fp.pol_num) prem_comm) pol_premcomm
ON pol_product.pol_num = pol_premcomm.pol_num
LEFT OUTER JOIN
-- Pull limit bands per policy
(SELECT pol_lmt.pol_num
,pol_lmt.lmt_pol_s
,CASE
WHEN pol_lmt.lmt_pol_s >= 50000001 AND pol_lmt.lmt_pol_s <= 100000000 THEN 20
WHEN pol_lmt.lmt_pol_s >= 40000001 AND pol_lmt.lmt_pol_s <= 50000000 THEN 19
WHEN pol_lmt.lmt_pol_s >= 30000001 AND pol_lmt.lmt_pol_s <= 40000000 THEN 18
WHEN pol_lmt.lmt_pol_s >= 20000001 AND pol_lmt.lmt_pol_s <= 30000000 THEN 17
WHEN pol_lmt.lmt_pol_s >= 15000001 AND pol_lmt.lmt_pol_s <= 20000000 THEN 16
WHEN pol_lmt.lmt_pol_s >= 14000001 AND pol_lmt.lmt_pol_s <= 15000000 THEN 15
WHEN pol_lmt.lmt_pol_s >= 13000001 AND pol_lmt.lmt_pol_s <= 14000000 THEN 14
WHEN pol_lmt.lmt_pol_s >= 12000001 AND pol_lmt.lmt_pol_s <= 13000000 THEN 13
WHEN pol_lmt.lmt_pol_s >= 11000001 AND pol_lmt.lmt_pol_s <= 12000000 THEN 12
WHEN pol_lmt.lmt_pol_s >= 10000001 AND pol_lmt.lmt_pol_s <= 11000000 THEN 11
WHEN pol_lmt.lmt_pol_s >= 9000001 AND pol_lmt.lmt_pol_s <= 10000000 THEN 10
WHEN pol_lmt.lmt_pol_s >= 8000001 AND pol_lmt.lmt_pol_s <= 9000000 THEN 9
WHEN pol_lmt.lmt_pol_s >= 7000001 AND pol_lmt.lmt_pol_s <= 8000000 THEN 8
WHEN pol_lmt.lmt_pol_s >= 6000001 AND pol_lmt.lmt_pol_s <= 7000000 THEN 7
WHEN pol_lmt.lmt_pol_s >= 5000001 AND pol_lmt.lmt_pol_s <= 6000000 THEN 6
WHEN pol_lmt.lmt_pol_s >= 4000001 AND pol_lmt.lmt_pol_s <= 5000000 THEN 5
WHEN pol_lmt.lmt_pol_s >= 3000001 AND pol_lmt.lmt_pol_s <= 4000000 THEN 4
WHEN pol_lmt.lmt_pol_s >= 2000001 AND pol_lmt.lmt_pol_s <= 3000000 THEN 3
WHEN pol_lmt.lmt_pol_s >= 1000001 AND pol_lmt.lmt_pol_s <= 2000000 THEN 2
WHEN pol_lmt.lmt_pol_s >= 1 AND pol_lmt.lmt_pol_s <= 1000000 THEN 1
ELSE 0
END AS Limit_Order
,CASE
WHEN pol_lmt.lmt_pol_s >= 50000001 AND pol_lmt.lmt_pol_s <= 100000000 THEN '$50,000,001-$100,000,000'
WHEN pol_lmt.lmt_pol_s >= 40000001 AND pol_lmt.lmt_pol_s <= 50000000 THEN '$40,000,001-$50,000,000'
WHEN pol_lmt.lmt_pol_s >= 30000001 AND pol_lmt.lmt_pol_s <= 40000000 THEN '$30,000,001-$40,000,000'
WHEN pol_lmt.lmt_pol_s >= 20000001 AND pol_lmt.lmt_pol_s <= 30000000 THEN '$20,000,001-$30,000,000'
WHEN pol_lmt.lmt_pol_s >= 15000001 AND pol_lmt.lmt_pol_s <= 20000000 THEN '$15,000,001-$20,000,000'
WHEN pol_lmt.lmt_pol_s >= 14000001 AND pol_lmt.lmt_pol_s <= 15000000 THEN '$14,000,001-$15,000,000'
WHEN pol_lmt.lmt_pol_s >= 13000001 AND pol_lmt.lmt_pol_s <= 14000000 THEN '$13,000,001-$14,000,000'
WHEN pol_lmt.lmt_pol_s >= 12000001 AND pol_lmt.lmt_pol_s <= 13000000 THEN '$12,000,001-$13,000,000'
WHEN pol_lmt.lmt_pol_s >= 11000001 AND pol_lmt.lmt_pol_s <= 12000000 THEN '$11,000,001-$12,000,000'
WHEN pol_lmt.lmt_pol_s >= 10000001 AND pol_lmt.lmt_pol_s <= 11000000 THEN '$10,000,001-$11,000,000'
WHEN pol_lmt.lmt_pol_s >= 9000001 AND pol_lmt.lmt_pol_s <= 10000000 THEN '$9,000,001-$10,000,000'
WHEN pol_lmt.lmt_pol_s >= 8000001 AND pol_lmt.lmt_pol_s <= 9000000 THEN '$8,000,001-$9,000,000'
WHEN pol_lmt.lmt_pol_s >= 7000001 AND pol_lmt.lmt_pol_s <= 8000000 THEN '$7,000,001-$8,000,000'
WHEN pol_lmt.lmt_pol_s >= 6000001 AND pol_lmt.lmt_pol_s <= 7000000 THEN '$6,000,001-$7,000,000'
WHEN pol_lmt.lmt_pol_s >= 5000001 AND pol_lmt.lmt_pol_s <= 6000000 THEN '$5,000,001-$6,000,000'
WHEN pol_lmt.lmt_pol_s >= 4000001 AND pol_lmt.lmt_pol_s <= 5000000 THEN '$4,000,001-$5,000,000'
WHEN pol_lmt.lmt_pol_s >= 3000001 AND pol_lmt.lmt_pol_s <= 4000000 THEN '$3,000,001-$4,000,000'
WHEN pol_lmt.lmt_pol_s >= 2000001 AND pol_lmt.lmt_pol_s <= 3000000 THEN '$2,000,001-$3,000,000'
WHEN pol_lmt.lmt_pol_s >= 1000001 AND pol_lmt.lmt_pol_s <= 2000000 THEN '$1,000,001-$2,000,000'
WHEN pol_lmt.lmt_pol_s >= 1 AND pol_lmt.lmt_pol_s <= 1000000 THEN '$0-$1,000,000'
ELSE 'Unknown'
END AS Limit_Group
FROM
(select fp.pol_num
,MAX(lmt_pol_s) lmt_pol_s
from bapu.dbo.fact_prem fp
where fp.amt_type = 'Premium'
and fp.product in (
'Package',
'Package - Crime',
'Package - Fine Art',
'Package - Jewelers Block',
'Package - Specie')
group by fp.pol_num) pol_lmt
) pol_limit
ON pol_product.pol_num = pol_limit.pol_num
where pol_product.product in (
'Package',
'Package - Crime',
'Package - Fine Art',
'Package - Jewelers Block',
'Package - Specie')
and pol_product.sub_product in(
'Umbrella/Excess',
'Workers Compensation',
'General Liability',
'Commercial Auto',
'Commercial Property')
) as pol_dtl
RIGHT OUTER JOIN
(select distinct fp.product
,lmtgrp.limit_group
from bapu.dbo.fact_prem fp
cross join
(select '$50,000,001-$100,000,000' limit_group
UNION
select '$40,000,001-$50,000,000'
UNION
select '$30,000,001-$40,000,000'
UNION
select '$20,000,001-$30,000,000'
UNION
select '$15,000,001-$20,000,000'
UNION
select '$14,000,001-$15,000,000'
UNION
select '$13,000,001-$14,000,000'
UNION
select '$12,000,001-$13,000,000'
UNION
select '$11,000,001-$12,000,000'
UNION
select '$10,000,001-$11,000,000'
UNION
select '$9,000,001-$10,000,000'
UNION
select '$8,000,001-$9,000,000'
UNION
select '$7,000,001-$8,000,000'
UNION
select '$6,000,001-$7,000,000'
UNION
select '$5,000,001-$6,000,000'
UNION
select '$4,000,001-$5,000,000'
UNION
select '$3,000,001-$4,000,000'
UNION
select '$2,000,001-$3,000,000'
UNION
select '$1,000,001-$2,000,000'
UNION
select '$0-$1,000,000'
UNION
select 'Unknown') lmtgrp
where fp.product in (
'Package',
'Package - Crime',
'Package - Fine Art',
'Package - Jewelers Block',
'Package - Specie')
and fp.sub_product in(
'Umbrella/Excess',
'Workers Compensation',
'General Liability',
'Commercial Auto',
'Commercial Property')
) limit_group_list
on pol_dtl.product = limit_group_list.product
and pol_dtl.Limit_Group = limit_group_list.limit_group
group by pol_dtl.Limit_Group, pol_dtl.Limit_Order, pol_dtl.product, limit_group_list.limit_group, sub_product
order by pol_dtl.product, pol_dtl.Limit_Order
答案 0 :(得分：0)
首先，我建议不要对表和子查询（fp）使用相同的别名，这使得很难遵循：S
其次，您可以使用以下查询替换group / max查询以获取最新的行
INNER JOIN (select subfp.pol_num
, subfp.id_prem
, ROW_NUMBER() OVER(PARTITION BY subfp.pol_num ORDER BY subfp.id_prem DESC) AS priority
from bapu.dbo.fact_prem subfp
) max_trans_id
on fp.pol_num = max_trans_id.pol_num
and fp.id_prem = max_trans_id.id_prem
and max_trans_id.priority = 1
我希望这会有所帮助