Как вы выполняете разбиение на страницы в SQL Server 2008?
Как сделать разбиение на страницы в SQL Server 2008
Ответ 1
Вы можете попробовать что-то вроде
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)
Ответ 2
Вы можете использовать ROW_NUMBER():
Возвращает порядковый номер строки в разделе набора результатов, начиная с 1 для первой строки в каждом разделе.
Пример:
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;
Ответ 3
SQL Server 2012 предоставляет функциональность разбиения на страницы (см. http://www.codeproject.com/Articles/442503/New-features-for-database-developers-in-SQL-Server)
В SQL2008 вы можете сделать это следующим образом:
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)
Prooven! Он работает и масштабируется последовательно.
Ответ 4
Эти две статьи содержат информацию, которую я нашел полезной некоторое время назад:
http://www.asp101.com/articles/gal/effectivepaging/default.asp, http://aspnet.4guysfromrolla.com/articles/031506-1.aspx
Ответ 5
1) СОЗДАТЬ DUMMY DATA
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) ТЕПЕРЬ ПРИМЕНЯЕТ РЕШЕНИЕ.
Этот случай предполагает, что EMPID будет уникальным и отсортированным столбцом.
Вне курса, вы примените его к другому столбцу...
DECLARE @pageSize INT = 20
SELECT * FROM (
SELECT *, PageNumber = CEILING(CAST(EMPID AS FLOAT)/@pageSize)
FROM #employee
) MyQuery
WHERE MyQuery.PageNumber = 1
Ответ 6
Это мое решение для подкачки результатов запроса на стороне SQL-сервера. Я добавил концепцию фильтрации и упорядочивания с помощью одного столбца. Это очень эффективно, когда вы выполняете пейджинг, фильтрацию и упорядочивание в своем Gridview.
Перед тестированием вам нужно создать одну таблицу образцов и вставить некоторую строку в эту таблицу: (В реальном мире вам нужно изменить предложение Where, рассматривающее ваше поле таблицы, и, возможно, у вас есть соединение и подзапрос в основной части выбора)
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
В SQL Server 2008 вы можете использовать концепцию CTE. Из-за этого я написал два типа запросов для SQL Server 2008 +
- 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
И второе решение с CTE в 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.
;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
Ответ 7
SELECT DISTINCT Id, MemberantId, 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
[email protected] AND [email protected] 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 [email protected] AND [email protected] AND t.IsDeleted = 0
AND (ISNULL(t.Id,0)=ISNULL(@SubmissionId,0)or ISNULL(@SubmissionId,0)<=0)