Question

我的查询几乎可以满足我的需求：

SET NOCOUNT ON

SELECT D.Id from MtdMdl_HierarchicalObject D
where D.Name LIKE '%R%'

SELECT B.* FROM MtdMdl_Item A
OUTER apply (SELECT * FROM MtdMdl_Item as C where a.Id=c.Id) as B
WHERE A.Owner in 
(
    SELECT D.Id from MtdMdl_HierarchicalObject D
    where D.Name LIKE '%R%'
)
order by Id offset 0 ROWS FETCH NEXT 3 ROWS ONLY
GO

不幸的是，我希望Order By Id Fetch New 3 Rows应用于返回的每个对象：

SELECT D.Id from MtdMdl_HierarchicalObject D
where D.Name LIKE '%R%'

因为当前脚本对前一个语句的整个结果应用了Paging。

Answer 1

如果您没有跳过任何行而只是获得3行，为什么还要使用OFFSET呢？只使用TOP子句

SELECT B.* 
FROM MtdMdl_Item A OUTER APPLY 
                    (SELECT TOP 3 * 
                     FROM MtdMdl_Item  
                      where Id= a.Id) as B
WHERE A.Owner in 
(
    SELECT D.Id from MtdMdl_HierarchicalObject D
    where D.Name LIKE '%R%'
)
order by Id

在这种情况下，你可以做这样的事情......

SELECT * FROM
(
SELECT B.*, A.ID , RN = ROW_NUMBER() OVER (PARTITION BY A.ID ORDER BY A.ID) 
FROM MtdMdl_Item A OUTER APPLY 
                    (SELECT  * 
                     FROM MtdMdl_Item  
                      where Id= a.Id) as B
WHERE A.Owner in 
(
    SELECT D.Id from MtdMdl_HierarchicalObject D
    where D.Name LIKE '%R%'
)
order by Id
) Q
WHERE RN >= LowerList  AND RN <= UpperLimit

TSQL OrderBy Offset问题

1 个答案: