公用表表达式和枢轴

Question

Iam试图在SQL查询，但我不能做一些事情。我想通过在此查询中使用row_number做分页，但我无法弄清楚我将不得不把“row_number之间”statement.Any帮助非常感谢。

WITH cte_ana 
    AS (SELECT movie_id, 
       id, 
       tag_id 
     FROM dt_movieTag) 
SELECT Kayit.*, 
     ROW_NUMBER() OVER (ORDER BY movie_id) as RowNum 
FROM cte_ana PIVOT(MAX(id) FOR tag_id IN ([3], [5], [9]))AS Kayit 
where Kayit.[3] is not null 
     and kayit.[5] is not null 
     and kayit.[9] is not null 
order by movie_id 

例如，我想这个从这个查询只选择几个数据（其中ROWNUM介于0和25）不能使用row_number的where子句所以需要嵌套的CTE

Answer 1

。 （显然，如果您想要第一行 25行，您可以使用TOP (25)）。

WITH cte_ana 
    AS (SELECT movie_id, 
       id, 
       tag_id 
     FROM dt_movieTag), 
cte2 AS 
(   
SELECT Kayit.*, 
     ROW_NUMBER() OVER (ORDER BY movie_id) as RowNum 
FROM cte_ana PIVOT(MAX(id) FOR tag_id IN ([3], [5], [9]))AS Kayit 
where Kayit.[3] is not null 
     and kayit.[5] is not null 
     and kayit.[9] is not null 
) 
SELECT * 
FROM cte2 
WHERE RowNum <= 25  
order by movie_id