Question

我的用户表，表结构是：

ID UserName
 1   AAA
 4   BBB
 7   CCC
 ........
 ........

其中ID是主键和标识字段。

假设PageSize为10，我想要find the page number for the ID 43。有没有办法在哪个页面找到ID（43）？

谢谢！

Answer 1

试试这个：

DECLARE @PageSize INT = 10
DECLARE @Order DECIMAL(10,2)
DECLARE @UserID INT = 1

SET @Order = (  SELECT  OrderNo
                FROM
                    (SELECT *, ROW_NUMBER() OVER (ORDER BY UserID) AS OrderNo
                     FROM   Users
                    ) AS U
                WHERE U.UserID = @UserID
             )

SELECT @UserID AS UserID, CEILING(@Order/@PageSize) PageNo

Answer 2

您可以使用Row_Number分区选项来实现此目的。

SELECT  ROW_NUMBER() OVER (ORDER BY UserID) AS OrderNo, *
                     FROM   Users

现在你简单地给出页面大小的条件，找出页面号。在您的情况下，简单查询给出没有分区选项的结果。

Declare @userid int =  43,    @PageSize int = 10

;with cte as
(
  SELECT  
       ROW_NUMBER() OVER (ORDER BY UserID) AS OrderNo, *
  FROM   Users 
)                     

Select 
      CEILING(OrderNo/@PageSize) PageNo 
FROM 
       cte where userID = @UserID

Row_number with Partition选项。如果您想在另一列上重新订购，那么

;with cte as
    (
      SELECT  
           ROW_NUMBER() OVER (PARTITION BY CompanyId ORDER BY UserID ) AS OrderNo, *
      FROM   Users 
    )           
Select 
          CEILING(OrderNo/@PageSize) PageNo 
    FROM 
           cte where userID = @UserID

查找特定记录的页码

2 个答案: