Question

我写了一个查询，从这样的表中检索前5条记录

SELECT Top(5)  Activity, GETUTCDATE() as CurrentDate
    FROM Activities
    WHERE UserID = @uid
    ORDER BY ActivityDate DESC

并且在View上我显示前5条记录，我还有一个更多关于点击下面5条记录应该显示的链接，再次点击该链接显示接下来的5条记录等等

我对如何编写此查询感到困惑，即如何获得接下来的5条记录然后接下来的5条等等

Answer 1

我使用RowNumber函数和CTE在你的例子中实现分页，这就像是。

With UserActivityData as  (
SELECT *,
    ROW_NUMBER() OVER(ORDER BY ActivityDate DESC) as RowNum,
    ROW_NUMBER() OVER(ORDER BY ActivityDate ASC) as InverseRowNum 
    FROM Activities
    WHERE UserID = @uid
    ) 

SELECT * from UserActivityData where RowNum between @StartIndex and @StartIndex + 4

需要SQL Server查询帮助

1 个答案: