如何在 SQL Server 2008 中进行分页答案

【问题标题】：How to do pagination in SQL Server 2008如何在 SQL Server 2008 中进行分页
【发布时间】：2011-01-15 16:54:10
【问题描述】：

如何在 SQL Server 2008 中进行分页？

【问题讨论】：

没有 MSSQL 2008 这样的东西。你的意思是“SQL Server 2008”

标签： sql sql-server-2008 pagination

【解决方案1】：

你可以使用ROW_NUMBER():

返回结果集分区内行的序号，每个分区的第一行从 1 开始。

例子：

WITH CTEResults AS
(
    SELECT IDColumn, SomeField, DateField, ROW_NUMBER() OVER (ORDER BY DateField) AS RowNum
    FROM MyTable
)

SELECT * 
FROM CTEResults
WHERE RowNum BETWEEN 10 AND 20;

【讨论】：

【解决方案2】：

你可以试试

DECLARE @Table TABLE(
        Val VARCHAR(50)
)

DECLARE @PageSize INT,
        @Page INT

SELECT  @PageSize = 10,
        @Page = 2

;WITH PageNumbers AS(
        SELECT Val,
                ROW_NUMBER() OVER(ORDER BY Val) ID
        FROM    @Table
)
SELECT  *
FROM    PageNumbers
WHERE   ID  BETWEEN ((@Page - 1) * @PageSize + 1)
        AND (@Page * @PageSize)

【讨论】：

我认为这段代码不起作用。你测试过这段代码吗？（它应该用“@Table”替换“PageNumbers”表。
@zeitgeist，它正在使用一个名为 PageNumbers 的 CTE。您是否按原样测试了代码？
这个分页算法是错误的。对于第 1 页和第 2 页，它可以工作，但从第 3 页开始，它将开始跳过条目。第2页将从11转到20，但第3页将从22转到30跳过条目21。

【解决方案3】：

SQL Server 2012 提供分页功能（请参阅http://www.codeproject.com/Articles/442503/New-features-for-database-developers-in-SQL-Server）

在SQL2008中你可以这样做：

declare @rowsPerPage as bigint; 
declare @pageNum as bigint; 
set @rowsPerPage=25; 
set @pageNum=10;   

With SQLPaging As   ( 
    Select Top(@rowsPerPage * @pageNum) ROW_NUMBER() OVER (ORDER BY ID asc) 
    as resultNum, * 
    FROM Employee )
select * from SQLPaging with (nolock) where resultNum > ((@pageNum - 1) * @rowsPerPage)

久经考验！它始终如一地工作和扩展。

【讨论】：

如果去掉顶部，结果可能会有所不同。如果您删除顶部，此方法不保证性能相同的结果，除非表已按 id 排序。

【解决方案4】：

1) 创建虚拟数据

CREATE TABLE #employee (EMPID INT IDENTITY, NAME VARCHAR(20))

DECLARE @id INT = 1

WHILE @id < 200

BEGIN
INSERT INTO #employee ( NAME ) VALUES ('employee_' + CAST(@id AS VARCHAR) )
SET @id = @id + 1
END

2) 现在应用解决方案。

这种情况假设 EMPID 是唯一且已排序的列。

在课程外，您将在不同的列中应用它...

DECLARE @pageSize INT = 20

SELECT * FROM (

SELECT *, PageNumber =  CEILING(CAST(EMPID AS FLOAT)/@pageSize)   
FROM #employee
) MyQuery

WHERE MyQuery.PageNumber = 1

【讨论】：

可爱的方法，但添加新列可能是开销。

【解决方案5】：

这些是我在 SQL 服务器端对查询结果进行分页的解决方案。我已经添加了过滤和排序的概念。当您在 Gridview 中进行分页、过滤和排序时，它非常有效。

在测试之前，您必须创建一个示例表并在该表中插入一些行：（在现实世界中，您必须考虑您的表字段来更改 Where 子句，也许您在选择的主要部分有一些连接和子查询）

Create Table VLT
(
    ID int IDentity(1,1),
    Name nvarchar(50),
    Tel Varchar(20)
)
GO


Insert INTO VLT
VALUES
    ('NAME' + Convert(varchar(10),@@identity),'FAMIL' +     Convert(varchar(10),@@identity))
GO 500000

在 SQL Server 2008 中，您可以使用 CTE 概念。因此，我为 SQL Server 2008+ 编写了两种类型的查询

-- SQL Server 2008+

DECLARE @PageNumber Int = 1200
DECLARE @PageSize INT = 200
DECLARE @SortByField int = 1 --The field used for sort by
DECLARE @SortOrder nvarchar(255) = 'ASC' --ASC or DESC
DECLARE @FilterType nvarchar(255) = 'None' --The filter type, as defined on the client side (None/Contain/NotContain/Match/NotMatch/True/False/)
DECLARE @FilterValue nvarchar(255) = '' --The value the user gave for the filter
DECLARE @FilterColumn int = 1 --The column to wich the filter is applied, represents the column number like when we send the information.

SELECT 
  Data.ID,
  Data.Name,
  Data.Tel
FROM
  (  
    SELECT 
      ROW_NUMBER() 
        OVER( ORDER BY 
                CASE WHEN @SortByField = 1 AND @SortOrder = 'ASC'
                      THEN VLT.ID END ASC,
                CASE WHEN @SortByField = 1 AND @SortOrder = 'DESC'
                      THEN VLT.ID END DESC,
                CASE WHEN @SortByField = 2 AND @SortOrder = 'ASC'
                      THEN VLT.Name END ASC,
                CASE WHEN @SortByField = 2 AND @SortOrder = 'DESC'
                      THEN VLT.Name END ASC,
                CASE WHEN @SortByField = 3 AND @SortOrder = 'ASC'
                      THEN VLT.Tel END ASC,
                CASE WHEN @SortByField = 3 AND @SortOrder = 'DESC'
                      THEN VLT.Tel END ASC
         ) AS RowNum
      ,*  
    FROM VLT 
    WHERE
      ( -- We apply the filter logic here
        CASE
          WHEN @FilterType = 'None' THEN 1

          -- Name column filter
          WHEN @FilterType = 'Contain' AND @FilterColumn = 1
            AND ( -- In this case, when the filter value is empty, we want to show everything.
                VLT.ID LIKE '%' + @FilterValue + '%'
               OR
                @FilterValue = ''
               ) THEN 1
          WHEN @FilterType = 'NotContain' AND @FilterColumn = 1
            AND ( -- In this case, when the filter value is empty, we want to show everything.
                VLT.ID NOT LIKE '%' + @FilterValue + '%'
               OR
                @FilterValue = ''
               ) THEN 1
          WHEN @FilterType = 'Match' AND @FilterColumn = 1
            AND VLT.ID = @FilterValue THEN 1
          WHEN @FilterType = 'NotMatch' AND @FilterColumn = 1
            AND VLT.ID <> @FilterValue THEN 1               

          -- Name column filter
          WHEN @FilterType = 'Contain' AND @FilterColumn = 2
            AND ( -- In this case, when the filter value is empty, we want to show everything.
                VLT.Name LIKE '%' + @FilterValue + '%'
               OR
                @FilterValue = ''
               ) THEN 1
          WHEN @FilterType = 'NotContain' AND @FilterColumn = 2
            AND ( -- In this case, when the filter value is empty, we want to show everything.
                VLT.Name NOT LIKE '%' + @FilterValue + '%'
               OR
                @FilterValue = ''
               ) THEN 1
          WHEN @FilterType = 'Match' AND @FilterColumn = 2
            AND VLT.Name = @FilterValue THEN 1
          WHEN @FilterType = 'NotMatch' AND @FilterColumn = 2
            AND VLT.Name <> @FilterValue THEN 1         

         -- Tel column filter   
         WHEN @FilterType = 'Contain' AND @FilterColumn = 3
            AND ( -- In this case, when the filter value is empty, we want to show everything.
                VLT.Tel LIKE '%' + @FilterValue + '%'
               OR
                @FilterValue = ''
               ) THEN 1
          WHEN @FilterType = 'NotContain' AND @FilterColumn = 3
            AND ( -- In this case, when the filter value is empty, we want to show everything.
                VLT.Tel NOT LIKE '%' + @FilterValue + '%'
               OR
                @FilterValue = ''
               ) THEN 1
          WHEN @FilterType = 'Match' AND @FilterColumn = 3
            AND VLT.Tel = @FilterValue THEN 1
          WHEN @FilterType = 'NotMatch' AND @FilterColumn = 3
            AND VLT.Tel <> @FilterValue THEN 1    

        END
      ) = 1   
  ) AS Data
WHERE Data.RowNum > @PageSize * (@PageNumber - 1)
  AND Data.RowNum <= @PageSize * @PageNumber
ORDER BY Data.RowNum

GO

在 SQL Server 2008+ 中使用 CTE 的第二个解决方案

DECLARE @PageNumber Int = 1200
DECLARE @PageSize INT = 200
DECLARE @SortByField int = 1 --The field used for sort by
DECLARE @SortOrder nvarchar(255) = 'ASC' --ASC or DESC
DECLARE @FilterType nvarchar(255) = 'None' --The filter type, as defined on the client side (None/Contain/NotContain/Match/NotMatch/True/False/)
DECLARE @FilterValue nvarchar(255) = '' --The value the user gave for the filter
DECLARE @FilterColumn int = 1 --The column to wich the filter is applied, represents the column number like when we send the information.

;WITH
  Data_CTE
  AS
  (  
    SELECT 
      ROW_NUMBER() 
        OVER( ORDER BY 
                CASE WHEN @SortByField = 1 AND @SortOrder = 'ASC'
                      THEN VLT.ID END ASC,
                CASE WHEN @SortByField = 1 AND @SortOrder = 'DESC'
                      THEN VLT.ID END DESC,
                CASE WHEN @SortByField = 2 AND @SortOrder = 'ASC'
                      THEN VLT.Name END ASC,
                CASE WHEN @SortByField = 2 AND @SortOrder = 'DESC'
                      THEN VLT.Name END ASC,
                CASE WHEN @SortByField = 3 AND @SortOrder = 'ASC'
                      THEN VLT.Tel END ASC,
                CASE WHEN @SortByField = 3 AND @SortOrder = 'DESC'
                      THEN VLT.Tel END ASC
         ) AS RowNum
      ,*  
    FROM VLT
    WHERE
      ( -- We apply the filter logic here
        CASE
          WHEN @FilterType = 'None' THEN 1

          -- Name column filter
          WHEN @FilterType = 'Contain' AND @FilterColumn = 1
            AND ( -- In this case, when the filter value is empty, we want to show everything.
                VLT.ID LIKE '%' + @FilterValue + '%'
               OR
                @FilterValue = ''
               ) THEN 1
          WHEN @FilterType = 'NotContain' AND @FilterColumn = 1
            AND ( -- In this case, when the filter value is empty, we want to show everything.
                VLT.ID NOT LIKE '%' + @FilterValue + '%'
               OR
                @FilterValue = ''
               ) THEN 1
          WHEN @FilterType = 'Match' AND @FilterColumn = 1
            AND VLT.ID = @FilterValue THEN 1
          WHEN @FilterType = 'NotMatch' AND @FilterColumn = 1
            AND VLT.ID <> @FilterValue THEN 1               

          -- Name column filter
          WHEN @FilterType = 'Contain' AND @FilterColumn = 2
            AND ( -- In this case, when the filter value is empty, we want to show everything.
                VLT.Name LIKE '%' + @FilterValue + '%'
               OR
                @FilterValue = ''
               ) THEN 1
          WHEN @FilterType = 'NotContain' AND @FilterColumn = 2
            AND ( -- In this case, when the filter value is empty, we want to show everything.
                VLT.Name NOT LIKE '%' + @FilterValue + '%'
               OR
                @FilterValue = ''
               ) THEN 1
          WHEN @FilterType = 'Match' AND @FilterColumn = 2
            AND VLT.Name = @FilterValue THEN 1
          WHEN @FilterType = 'NotMatch' AND @FilterColumn = 2
            AND VLT.Name <> @FilterValue THEN 1         

         -- Tel column filter   
         WHEN @FilterType = 'Contain' AND @FilterColumn = 3
            AND ( -- In this case, when the filter value is empty, we want to show everything.
                VLT.Tel LIKE '%' + @FilterValue + '%'
               OR
                @FilterValue = ''
               ) THEN 1
          WHEN @FilterType = 'NotContain' AND @FilterColumn = 3
            AND ( -- In this case, when the filter value is empty, we want to show everything.
                VLT.Tel NOT LIKE '%' + @FilterValue + '%'
               OR
                @FilterValue = ''
               ) THEN 1
          WHEN @FilterType = 'Match' AND @FilterColumn = 3
            AND VLT.Tel = @FilterValue THEN 1
          WHEN @FilterType = 'NotMatch' AND @FilterColumn = 3
            AND VLT.Tel <> @FilterValue THEN 1    

        END
      ) = 1     
  )

SELECT 
  Data.ID,
  Data.Name,
  Data.Tel
FROM Data_CTE AS Data
WHERE Data.RowNum > @PageSize * (@PageNumber - 1)
  AND Data.RowNum <= @PageSize * @PageNumber
ORDER BY Data.RowNum

【讨论】：

【解决方案6】：

另一个至少从 SQL 2005 开始工作的解决方案是将 TOP 与 SELECT 子查询和 ORDER BY 子句一起使用。

简而言之，检索每页 10 行的第 2 行与检索前 20 行中的最后 10 行相同。这意味着使用 ASC 顺序检索前 20 行，然后使用 DESC 顺序检索前 10 行，然后再使用 ASC 进行排序。

示例：检索页面 2 行，每页 3 行

create table test(id integer);
insert into test values(1),(2),(3),(4),(5),(6),(7),(8),(9),(10);

select * 
    from (
        select top 2 * 
            from (
                select  top (4) * 
                    from test 
                    order by id asc) tmp1
            order by id desc) tmp1 
    order by id asc

【讨论】：

TOP 解决了第一页的问题，但没有解决下一页的问题……我需要在有 50 条记录的页面中请求数据。我用的第一页选择 TOP 50，好的，但是第二页呢？
这就是我的示例显示的内容。获取第 2 页的 50 条记录：选择前 100 条记录，然后按倒序排列，选择前 50 条记录。您现在有您的第 2 页记录，但顺序相反。正确地重新排序它们，你就完成了。但那是复杂的代码，你应该只在你被旧的 SQL Server 版本卡住并且无法访问诸如 ROW_NUMBER() 之类的功能时才使用它。

【解决方案7】：

我用于分页的查询是这个（在 Oracle DB 上）。

SELECT * FROM tableName
WHERE  RowNum >= 1
AND RowNum < 20
ORDER BY RowNum;

RowNum - 它是由 DB 提供的变量。对于查询返回的每一行，ROWNUM 伪列返回一个数字，指示 Oracle 从一个表或一组连接行中选择行的顺序。

【讨论】：

【解决方案8】：

SELECT DISTINCT Id,ParticipantId,ActivityDate,IsApproved,
    IsDeclined,IsDeleted,SubmissionDate,    IsResubmitted,  

    [CategoryId] Id,[CategoryName] Name,

    [ActivityId] [Id],[ActivityName] Name,Points,   

    [UserId] [Id],Email,
    ROW_NUMBER() OVER(ORDER BY Id desc)   AS RowNum from
    (SELECT DISTINCT
    Id,ParticipantId,
    ActivityDate,IsApproved,
    IsDeclined,IsDeleted,
    SubmissionDate, IsResubmitted,  

    [CategoryId] [CategoryId],[CategoryName] [CategoryName],

    [ActivityId] [ActivityId],[ActivityName] [ActivityName],Points, 

    [UserId] [UserId],Email,
    ROW_NUMBER() OVER(ORDER BY Id desc)   AS RowNum from

     (SELECT DISTINCT ASN.Id,
    ASN.ParticipantId,ASN.ActivityDate,
    ASN.IsApproved,ASN.IsDeclined,
    ASN.IsDeleted,ASN.SubmissionDate,
    CASE WHEN (SELECT COUNT(*) FROM FDS_ActivitySubmission WHERE ParentId=ASN.Id)>0 THEN CONVERT(BIT, 1) ELSE CONVERT(BIT, 0) END IsResubmitted,

    AC.Id [CategoryId], AC.Name [CategoryName],

    A.Id [ActivityId],A.Name [ActivityName],A.Points,

    U.Id[UserId],U.Email    


FROM
FDS_ActivitySubmission ASN WITH (NOLOCK)
INNER JOIN  
    FDS_ActivityCategory AC WITH (NOLOCK)
ON 
    AC.Id=ASN.ActivityCategoryId
        INNER JOIN
    FDS_ApproverDetails FDSA
ON
FDSA.ParticipantID=ASN.ParticipantID

        INNER JOIN
       FDS_ActivityJobRole FAJ
ON
     FAJ.RoleId=FDSA.JobRoleId
    INNER JOIN

    FDS_Activity A WITH (NOLOCK)
ON 
    A.Id=ASN.ActivityId
INNER JOIN
   Users U WITH (NOLOCK)
ON
    ASN.ParticipantId=FDSA.ParticipantID
WHERE
       IsDeclined=@IsDeclined AND IsApproved=@IsApproved    AND ASN.IsDeleted=0
       AND
       ISNULL(U.Id,0)=ISNULL(@ApproverId,0)
       AND ISNULL(ASN.IsDeleted,0)<>1)P)t where t.RowNum between 
       (((@PageNumber - 1) * @PageSize) + 1) AND (@PageNumber * PageSize)
    AND t.IsDeclined=@IsDeclined AND t.IsApproved=@IsApproved AND t.IsDeleted = 0
 AND (ISNULL(t.Id,0)=ISNULL(@SubmissionId,0)or ISNULL(@SubmissionId,0)<=0)

【讨论】：

请不要只发布一些代码，而是解释为什么和如何这段代码解决了这个问题。