Question

现在代码是（为了简单起见，我还没有使用ADO命令对象来防止SQL注入）。

我有一个大型数据集。我正在使用getrows方法，它很棒，可以检索记录集。我找不到类似的存储过程来根据您在浏览器中拥有的页面来检索记录。

基本上，sql检索相对于客户端浏览器所在页面的10个记录集。它从CurrPage值获取页面值。我使用服务器端代码处理第一页和最后一页，因此没有任何错误。

感谢任何帮助。

If IsEmpty(Request.Querystring("pg")) then
CurrPage = 1
Else
CurrPage = Cint(Request.Querystring("pg"))
End If

RSPrevPage = CurrPage -1
RSNextPage = CurrPage + 1 

SQL = "SELECT gallerypublic.img, gallerypublic.galleryID, blahblahblah FROM gallerypublic INNER JOIN GalleryPublicCat ON gallerypublic.publicgallerycatid = GalleryPublicCat.pubcatID INNER JOIN userbase ON gallerypublic.userid = userbase.userid Order by galleryid desc"

Set rsFeed = Server.CreateObject("ADODB.Recordset")
rsFeed.Open sql, Conn, adOpenKeyset, adLockReadOnly
rsFeed.PageSize = 10
rsFeed.AbsolutePage = CurrPage
arrFeed = rsFeed.getrows(10)
intPageCount = rsFeed.PageCount
rsFeed.close
set rsFeed = Nothing

我在http://www.aspfaqs.com/webtech/042606-1.shtml找到了这个存储过程，但我无法将其转换为我的需求。

TIA

经过一些试验和错误后，这是工作代码：

服务器端：

    If IsEmpty(Request.Querystring("pg")) then
    CurrPage = 1
    Else
    CurrPage = Cint(Request.Querystring("pg"))
    End If

    RSPrevPage = CurrPage -1
    RSNextPage = CurrPage + 1

    pgSize = 10

    Set objCommandSec = CreateObject("ADODB.Command") 
    objCommandSec.ActiveConnection = Conn

    With objCommandSec
    Set .ActiveConnection = Conn
    .CommandType = adCmdStoredProc
    .CommandText = "spPageDef"
    .Parameters.Append .CreateParameter("@PageNum", 200, 1, 255, CurrPage)
    .Parameters.Append .CreateParameter("@PageSize", 200, 1, 255, pgSize)
    .Parameters.Append .CreateParameter("@TotalRowsNum", adInteger, adParamReturnValue)

    Set rsFeed = objCommandSec.Execute
    arrFeed = rsFeed.getrows()
    rsFeed.close
    set rsFeed = nothing

    intPageCount = cLng((.Parameters(2).value/pgSize))

    End With

存储过程：

    @PageNum int,
    @PageSize int,
    @TotalRowsNum int output

    BEGIN
        -- SET NOCOUNT ON added to prevent extra result sets from

        -- interfering with SELECT statements.

        SET NOCOUNT ON;

        -- Use ROW_NUMBER function

        WITH DefaultEntries As
        (
            SELECT  
g.img, g.galleryID, g.viewed, g.votes, g.rate, g.created, blahblah,
'RowNumber' = ROW_NUMBER() OVER(ORDER BY galleryid DESC)

        FROM gallerypublic AS g INNER JOIN GalleryPublicCat AS gpc ON g.publicgallerycatid = gpc.pubcatID INNER JOIN userbase AS u ON g.userid = u.userid
        )

        -- Query result

        SELECT * 
        FROM DefaultEntries
        WHERE RowNumber BETWEEN (@PageNum - 1) * @PageSize + 1 AND @PageNum * @PageSize             
        ORDER BY galleryid DESC

    SELECT @TotalRowsNum = count(galleryid) 
    FROM gallerypublic AS g INNER JOIN GalleryPublicCat AS gpc ON g.publicgallerycatid = gpc.pubcatID INNER JOIN userbase AS u ON g.userid = u.userid

    END

感谢所有帮助过我并指出正确方向的人

Answer 1

听起来你想在你的存储过程中使用你的分页逻辑。看起来你正在使用SQL Server 2005.建议使用CTE来实现你的分页，并放弃你的ADO实现。建议这样的事情：

CREATE PROC     GetMyData
@PageSize INT,
@PageNumber INT,
@FirstRow INT
AS
DECLARE @LastRow INT;

SELECT   @FirstRow = ( @PageNumber - 1) * @PageSize + 1,
          @LastRow = (@PageNumber - 1) * @PageSize + @PageSize;

WITH MySet  AS
(
    SELECT ROW_NUMBER() OVER
               (ORDER BY galleryid DESC) AS RowNumber,
            g.img, 
            g.galleryID, 
            etc 
    FROM gallerypublic as g
    INNER JOIN GalleryPublicCat AS gpc ON g.publicgallerycatid = gpc.pubcatID 
    INNER JOIN userbase AS u ON g.userid = u.userid 
)
SELECT  RowNumber, 
        img, galleryid, etc
FROM    MySet
WHERE   RowNumber BETWEEN @FirstRow AND @LastRow
ORDER BY RowNumber ASC;

Answer 2

存储过程

    @PageNum int,
    @PageSize int,
    @TotalRowsNum int output

    BEGIN
        -- SET NOCOUNT ON added to prevent extra result sets from

        -- interfering with SELECT statements.

        SET NOCOUNT ON;

        -- Use ROW_NUMBER function

        WITH DefaultEntries As
        (
            SELECT  
g.img, g.galleryID, g.viewed, g.votes, g.rate, g.created, blahblah,
'RowNumber' = ROW_NUMBER() OVER(ORDER BY galleryid DESC)

        FROM gallerypublic AS g INNER JOIN GalleryPublicCat AS gpc ON g.publicgallerycatid = gpc.pubcatID INNER JOIN userbase AS u ON g.userid = u.userid
        )

        -- Query result

        SELECT * 
        FROM DefaultEntries
        WHERE RowNumber BETWEEN (@PageNum - 1) * @PageSize + 1 AND @PageNum * @PageSize             
        ORDER BY galleryid DESC

    SELECT @TotalRowsNum = count(galleryid) 
    FROM gallerypublic AS g INNER JOIN GalleryPublicCat AS gpc ON g.publicgallerycatid = gpc.pubcatID INNER JOIN userbase AS u ON g.userid = u.userid

    END

服务器端

If IsEmpty(Request.Querystring("pg")) then
CurrPage = 1
Else
CurrPage = Cint(Request.Querystring("pg"))
End If

RSPrevPage = CurrPage -1
RSNextPage = CurrPage + 1

pgSize = 10

Set objCommandSec = CreateObject("ADODB.Command") 
objCommandSec.ActiveConnection = Conn

With objCommandSec
Set .ActiveConnection = Conn
.CommandType = adCmdStoredProc
.CommandText = "spPageDef"
.Parameters.Append .CreateParameter("@PageNum", 200, 1, 255, CurrPage)
.Parameters.Append .CreateParameter("@PageSize", 200, 1, 255, pgSize)
.Parameters.Append .CreateParameter("@TotalRowsNum", adInteger, adParamReturnValue)

Set rsFeed = objCommandSec.Execute
arrFeed = rsFeed.getrows()
rsFeed.close
set rsFeed = nothing

intPageCount = cLng((.Parameters(2).value/pgSize))

End With

需要使用SQL Server 2005转换大型数据集的分页存储过程

2 个答案: