How do you do pagination in SQL Server 2008 ?
8 Answers
You can use ROW_NUMBER():
Returns the sequential number of a row within a partition of a result set, starting at 1 for the first row in each partition.
Example:
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;
You can try something like
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)
These are my solution for paging the result of query in SQL server side. I have added the concept of filtering and order by with one column. It is very efficient when you are paging and filtering and ordering in your Gridview.
Before testing, you have to create one sample table and insert some row in this table : (In real world you have to change Where clause considering your table field and maybe you have some join and subquery in main part of select)
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
In SQL server 2008, you can use the CTE concept. Because of that, I have written two type of query for 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
And second solution with CTE in 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
The query that i have used for pagination is this (on Oracle DB).
SELECT * FROM tableName
WHERE RowNum >= 1
AND RowNum < 20
ORDER BY RowNum;
RowNum- it is variable provide by DB .For each row returned by a query, the ROWNUM pseudocolumn returns a number indicating the order in which Oracle selects the row from a table or set of joined rows.
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