목록 매년 상위 3 판매 제품

Question

문제는 내가 대답

CalendarYear ProductKey EnglishProductSubcategoryName SALES 
2006 312 Road Bikes 658401.68 
2006 313 Road Bikes 608305.90 
2006 310 Road Bikes 608305.90 

select top 3 b.CalendarYear,c.ProductKey, d.EnglishProductSubcategoryName ,SUM(a.SalesAmount) as SALES 
from FactInternetSales as A inner join dimdate as B 
on a.OrderDateKey =b.DateKey 
inner join DimProduct as c 
on c.ProductKey = a.ProductKey 
inner join DimProductSubcategory as d 
on c.ProductSubcategoryKey = d.ProductSubcategoryKey 
inner join DimProductCategory as e 
on d.ProductCategoryKey=e.ProductCategoryKey 
group by b.CalendarYear,c.ProductKey, d.EnglishProductSubcategoryName 
order by SALES desc 

다음있어 다음과 같은 쿼리를 실행

"매년 상위 3 판매 제품 목록"입니다

내 검색어는 "년 2006"데이터가 모든 연도가 아닌 왜 왔는지입니다.

Answer 1

일반적인 생각은 카운터가 작 된 기록 (1 2 3) 행의 각 그룹에 열 카운터를 추가 한 다음 선택하는 3

Answer 2

를 사용하여 아래의 쿼리에 동일 수 ...

; WITH cte_1 
    AS 
    (SELECT CalendarYear,ProductKey 
         ,EnglishProductSubcategoryName,SALES 
        ,ROW_NUMBER() OVER(PARTITION BY 
          CalendarYear,ProductKey 
          ,EnglishProductSubcategoryName 
         ORDER BY Sales DESC) RNO 
     FROM (select b.CalendarYear,c.ProductKey 
           ,d.EnglishProductSubcategoryName 
           ,SUM(a.SalesAmount) as SALES 
         from FactInternetSales as A 
          inner join dimdate as B 
           on a.OrderDateKey =b.DateKey 
          inner join DimProduct as c 
           on c.ProductKey = a.ProductKey 
          inner join DimProductSubcategory as d 
           on c.ProductSubcategoryKey = d.ProductSubcategoryKey 
          inner join DimProductCategory as e 
           on d.ProductCategoryKey=e.ProductCategoryKey 
         group by b.CalendarYear,c.ProductKey 
          , d.EnglishProductSubcategoryName)t 
) 
    SELECT CalendarYear,ProductKey 
         ,EnglishProductSubcategoryName,SALES 
    FROM cte_1 
    WHERE RNO<4 
    ORDER BY CalendarYear DESC,RNO ASC 

제공된 스크립트에서 결과 set3에서 top3 레코드 만 선택하면 출력으로 ony 3 레코드가 표시됩니다.