將數據合併爲單個單元格同時求和單元格

Question

我不知道如何很好地將我的問題提出來，所以我將從返回的數據開始：

prop_id |評估值| sale_id

35004 | 401200 | 1920831

35005 | 40500 | 1920831

35023 | 11300 | 1920831

34380 | 139100 | 1915846

127959 | 286400 | 1915882

我想返回：

prop_id |評估值| sale_id

35004,35005,35023 | 453000（3個包裹的總和）| 1920831

34380 | 139100 | 1915846

127959 | 286400 | 1915882

所以我的主要目標是將sale_id字段中的所有包裹合併到一個字符串中，但僅當銷售ID具有多個prop_id時，然後總結所有這些評估值。這是我使用，以獲得第一組數據的查詢......

select 
pv1.[prop_id], 
pv1.[assessed_val], 
ld1.[sale_id] 
from dbo.land_detail as ld1  
join dbo.property_val as pv1 on 
pv1.[prop_id] = ld1.[prop_id] and 
pv1.[prop_val_yr] = ld1.[prop_val_yr] and 
pv1.[sup_num] = ld1.[sup_num] 
left join dbo.sale as sale1 on 
sale1.[chg_of_owner_id] = ld1.[sale_id] 
where 
pv1.[prop_inactive_dt] is null 
order by sale_id, prop_id 

PROP_ID的數據類型爲INT的
assessed_val的數據類型爲數字的（14,0）
sale_id是數據類型INT

Answer 1

您可以使用創建臨時表，那麼你可以使用的東西（）FOR XML PATH來串聯PROP_ID場成一排

WITH temp AS (
select pv1.[prop_id], 
     pv1.[assessed_val], 
     ld1.[sale_id], 
     sale1.[sl_price], 
     sale1.[sl_dt], 
     (pv1.[assessed_val]/NULLIF(sale1.[sl_price],0) as Ratio 
    from dbo.land_detail as ld1 with(nolock) 
    join dbo.property_val as pv1 with(nolock) 
    on pv1.[prop_id] = ld1.[prop_id] 
    and pv1.[prop_val_yr] = ld1.[prop_val_yr] 
    and pv1.[sup_num] = ld1.[sup_num] 
    left join dbo.sale as sale1 with(nolock) 
    on sale1.[chg_of_owner_id] = ld1.[sale_id] 
where sale1.sl_dt <= '04/30/16' 
    and sale1.sl_dt >= '05/01/15' 
    and pv1.[sub_type] = 'r' 
    and pv1.[prop_val_yr] = 2016 
    and pv1.[prop_inactive_dt] is null 
order by sale_id, prop_id 
) 

SELECT STUFF((SELECT ', ' + CAST(prop_id AS VARCHAR) 
       FROM temp 
       WHERE sale_id = t.sale_id 
       FOR XML PATH(''),TYPE) 
       .value('.','NVARCHAR(MAX)'),1,2,'') AS parcels, 
     SUM(t.assessed_val) assessed_val, 
     t.sale_id, 
     t.sl_price, 
     t.sl_dt, 
     SUM(t.ratio) ratio 
    FROM temp t 
GROUP BY t.sale_id, 
      t.sl_price, 
      t.sl_dt 
ORDER BY t.sale_id DESC 

Answer 2

將所有內容放入臨時表（#temp）中，如下所示。然後進行自加入以選擇值。有幾種使用（SUFF（），XML PATH等）進行連接的方法。關於如何連接行到逗號分隔字符串在互聯網上搜索是指this鏈接，例如

select 
pv1.[prop_id], 
pv1.[assessed_val], 
ld1.[sale_id], 
sale1.[sl_price], 
sale1.[sl_dt], 
(pv1.[assessed_val]/sale1.[sl_price]) as Ratio 
--------Temp Table------------ 
INTO #temp 
------------------------------ 
from dbo.land_detail as ld1 with(nolock)  
join dbo.property_val as pv1 with(nolock) on  
pv1.[prop_id] = ld1.[prop_id] and 
pv1.[prop_val_yr] = ld1.[prop_val_yr] and 
pv1.[sup_num] = ld1.[sup_num] 
left join dbo.sale as sale1 with(nolock) on 
sale1.[chg_of_owner_id] = ld1.[sale_id] 
where 
sale1.sl_dt <= '04/30/16' and 
sale1.sl_dt >= '05/01/15' and 
pv1.[sub_type] = 'r' and 
pv1.[prop_val_yr] = 2016 and 
pv1.[prop_inactive_dt] is null 
order by sale_id, prop_id