在SQL Server 2000、2005、2008、2012中分页结果的最佳方法(性能方面)是什么?如果你还想获得结果的总数(在分页之前)?
当前回答
您没有指定使用的语言或驱动程序。因此我只是抽象地描述它。
创建可滚动的结果集/数据集。这要求在表上有一个(多个)主表 跳到最后 请求行数 跳转到页面的开头 滚动行直到页面的末尾
其他回答
在sql server 2012中分页的最佳方法是在存储过程中使用offset和fetch next。 OFFSET关键字-如果对order by子句使用OFFSET，则查询将跳过OFFSET n Rows中指定的记录数。
FETCH NEXT关键字-当我们使用FETCH NEXT与一个order by子句，它将返回你想要显示在分页的行数，没有Offset，那么SQL将生成一个错误。 下面是一个例子。
create procedure sp_paging
(
@pageno as int,
@records as int
)
as
begin
declare @offsetcount as int
set @offsetcount=(@pageno-1)*@records
select id,bs,variable from salary order by id offset @offsetcount rows fetch Next @records rows only
end
您可以像下面这样执行它。
exec sp_paging 2,3
MSDN: ROW_NUMBER (Transact-SQL)
返回结果集中分区内某一行的顺序编号，每个分区中的第一行从1开始。 下面的示例按照OrderDate的顺序返回数字为50到60的行。
WITH OrderedOrders AS
(
SELECT
ROW_NUMBER() OVER(ORDER BY FirstName DESC) AS RowNumber,
FirstName, LastName, ROUND(SalesYTD,2,1) AS "Sales YTD"
FROM [dbo].[vSalesPerson]
)
SELECT RowNumber,
FirstName, LastName, Sales YTD
FROM OrderedOrders
WHERE RowNumber > 50 AND RowNumber < 60;
RowNumber FirstName LastName SalesYTD
--- ----------- ---------------------- -----------------
1 Linda Mitchell 4251368.54
2 Jae Pak 4116871.22
3 Michael Blythe 3763178.17
4 Jillian Carson 3189418.36
5 Ranjit Varkey Chudukatil 3121616.32
6 José Saraiva 2604540.71
7 Shu Ito 2458535.61
8 Tsvi Reiter 2315185.61
9 Rachel Valdez 1827066.71
10 Tete Mensa-Annan 1576562.19
11 David Campbell 1573012.93
12 Garrett Vargas 1453719.46
13 Lynn Tsoflias 1421810.92
14 Pamela Ansman-Wolfe 1352577.13
最后，微软SQL Server 2012发布了，我真的很喜欢它的简单的分页，你不需要使用复杂的查询，就像这里回答的。
要获得接下来的10行，只需运行这个查询:
SELECT * FROM TableName ORDER BY id OFFSET 10 ROWS FETCH NEXT 10 ROWS ONLY;
https://learn.microsoft.com/en-us/sql/t-sql/queries/select-order-by-clause-transact-sql#using-offset-and-fetch-to-limit-the-rows-returned
使用时需要考虑的要点:
ORDER BY是强制使用OFFSET…获取子句。 OFFSET子句在FETCH中是强制的。你不能使用ORDER BY… 取回。 在同一个查询中，TOP不能与OFFSET和FETCH组合使用 表达式。
这些是我在SQL server端对查询结果进行分页的解决方案。 这些方法在SQL Server 2008和2012之间是不同的。 此外，我还添加了过滤和排序的概念。当你在Gridview中分页、过滤和排序时，它是非常高效的。
在测试之前，你必须创建一个示例表，并在这个表中插入一些行:(在现实世界中，你必须改变Where子句，考虑到你的表字段，也许你有一些连接和子查询在select的主要部分)
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
在所有这些示例中，我想查询每页200行，我正在获取页码为1200的行。
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
SQL Server 2012+
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
*
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
ORDER BY
CASE WHEN @SortByField = 1 AND @SortOrder = 'ASC'
THEN Data.ID END ASC,
CASE WHEN @SortByField = 1 AND @SortOrder = 'DESC'
THEN Data.ID END DESC,
CASE WHEN @SortByField = 2 AND @SortOrder = 'ASC'
THEN Data.Name END ASC,
CASE WHEN @SortByField = 2 AND @SortOrder = 'DESC'
THEN Data.Name END ASC,
CASE WHEN @SortByField = 3 AND @SortOrder = 'ASC'
THEN Data.Tel END ASC,
CASE WHEN @SortByField = 3 AND @SortOrder = 'DESC'
THEN Data.Tel END ASC
OFFSET @PageSize * (@PageNumber - 1) ROWS FETCH NEXT @PageSize ROWS ONLY;
对于ROW_NUMBER技术，如果你没有一个排序列，你可以使用CURRENT_TIMESTAMP，如下所示:
SELECT TOP 20
col1,
col2,
col3,
col4
FROM (
SELECT
tbl.col1 AS col1
,tbl.col2 AS col2
,tbl.col3 AS col3
,tbl.col4 AS col4
,ROW_NUMBER() OVER (
ORDER BY CURRENT_TIMESTAMP
) AS sort_row
FROM dbo.MyTable tbl
) AS query
WHERE query.sort_row > 10
ORDER BY query.sort_row
对于我来说，这种方法在搜索表大小甚至高达700,000的情况下效果很好。
这将获取记录11到30。
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