Sql Sum 乘法结果

Question

我正在尝试将其转换为“毛利”类型的报告，但遇到了问题。

select 
   CONVERT(VARCHAR(12), ih.invoice_date,110) as invoice_date, 
   oh.order_no, 
   bosr.salesrep_name, 
   bosr.salesrep_id,
   oh.location_id, 
   oh.taker, 
   oh.customer_id, 
   Replace(oh.ship2_name, ',', ' ') as Ship_to_name,
   bosr.supplier_id, 
   Replace(bosr.supplier_name, ',', ' ') as Supplier_name,
   Cast((dc.dealer_commission_amt_due) as DECIMAL (19,2)) as "Gross Profit"
from oe_hdr oh 
 inner join anspin_view_booked_orders_ship_to_rep bosr
   on oh.order_no = bosr.order_no
 inner join oe_line ol 
   on oh.order_no = ol.order_no
 inner join invoice_hdr ih 
   on oh.order_no = ih.order_no
 inner join dealer_commission dc 
   on ih.invoice_no = dc.invoice_no
where 
  ih.invoice_date >= '2014-07-01' and
  ih.invoice_date < '2014-08-01' and
  ol.qty_ordered > '0' and
  bosr.source_code_no <> '706' and
  bosr.source_code_no <> '709'
group by 
  CONVERT(VARCHAR(12), ih.invoice_date, 110),
  oh.order_no, 
  bosr.salesrep_name, 
  bosr.salesrep_id,
  oh.location_id, 
  oh.customer_id, 
  oh.taker, 
  oh.ship2_name,
  bosr.supplier_id, 
  bosr.supplier_name, 
  dc.dealer_commission_amt_due
order by invoice_date;

效果很好，“毛利润”列显示了我想要的日期范围内的正确值......现在，如果我要从组中删除“dc.dealer_commission_amt_due”，然后进行此更改：

 Cast(sum(dc.dealer_commission_amt_due) as DECIMAL (19,2)) as "Gross Profit"

我在发票编号的某些（不是全部！这很奇怪，因为有些是正确的）中获得的金额是其原始价值的 2-4+ 倍。

两者之间的示例：

invoice_date order_no salesrep_name salesrep_id location_id taker   customer_id Ship_to_name    supplier_id Supplier_name   Gross Profit
 07-10-2014   X         NAME          ID           60       NAME    X           Customer INC    123452      supplier INC.   4800.00

非和：

invoice_date order_no salesrep_name salesrep_id location_id taker   customer_id Ship_to_name    supplier_id Supplier_name   Gross Profit
 07-10-2014   X         NAME          ID           60       NAME    X           Customer INC    123452      supplier INC.   750.00
invoice_date order_no salesrep_name salesrep_id location_id taker   customer_id Ship_to_name    supplier_id Supplier_name   Gross Profit
 07-10-2014   X         NAME          ID           60       NAME    X           Customer INC    123452      supplier INC.   450.00

从我读到的内容来看，这与连接有关...这是正确的吗？

Answer 1

这两个查询不一样：

SELECT Cast(( dc.dealer_commission_amt_due ) AS DECIMAL (19, 2)) AS  "Gross Profit" 
FROM  dealer_commission dc 
GROUP BY  dc.dealer_commission_amt_due 


SELECT Cast(( SUM(dc.dealer_commission_amt_due) ) AS DECIMAL (19, 2)) AS "Gross Profit" 
FROM  dealer_commission dc 

在 GROUP BY 子句中添加额外的列会在结果中返回更多行，但不会影响总和。删除 GROUP BY 中的列将返回更少的行，并且不会再次影响总和。

查询中唯一能影响总和的部分是匹配了哪些行。

另外，请记住查询的操作顺序：

FROM  
WHERE  
GROUP BY  
HAVING  
SELECT  
ORDER BY

Answer 2

您需要聚合吗？

select 
   CONVERT(VARCHAR(12), ih.invoice_date,110) as invoice_date, 
   oh.order_no, 
   bosr.salesrep_name, 
   bosr.salesrep_id,
   oh.location_id, 
   oh.taker, 
   oh.customer_id, 
   Replace(oh.ship2_name, ',', ' ') as Ship_to_name,
   bosr.supplier_id, 
   Replace(bosr.supplier_name, ',', ' ') as Supplier_name,
   SUM(Cast((dc.dealer_commission_amt_due) as DECIMAL (19,2))) as "Gross Profit"  --<<AGGREGATION ADDED
from oe_hdr oh 
 inner join anspin_view_booked_orders_ship_to_rep bosr
   on oh.order_no = bosr.order_no
 inner join oe_line ol 
   on oh.order_no = ol.order_no
 inner join invoice_hdr ih 
   on oh.order_no = ih.order_no
 inner join dealer_commission dc 
   on ih.invoice_no = dc.invoice_no
where 
  ih.invoice_date >= '2014-07-01' and
  ih.invoice_date < '2014-08-01' and
  ol.qty_ordered > '0' and
  bosr.source_code_no <> '706' and
  bosr.source_code_no <> '709'
group by 
  CONVERT(VARCHAR(12), ih.invoice_date, 110),
  oh.order_no, 
  bosr.salesrep_name, 
  bosr.salesrep_id,
  oh.location_id, 
  oh.customer_id, 
  oh.taker, 
  oh.ship2_name,
  bosr.supplier_id, 
  bosr.supplier_name
order by invoice_date;

Answer 3

最终不得不支付软件公司编写查询的费用，因为他们有将不同表链接在一起的“百科全书”。

我能够通过自己摆脱乘法获得 50%，但只有 50% 的订单类型显示出来......我放弃了，现在有一个可以比较的有效查询。

感谢您的所有帮助和建议！