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  • 通用分页存储过程

    /*
    名称:spAll_ReturnRows
    输入:
    输出:
    调用:
      EXEC spAll_ReturnRows 'SELECT  * FROM 表名', 页号, 返回记录数, '主键', '排序字段'
      spAll_ReturnRows 'SELECT  * FROM all_Categories',2,10,'[ID]','[ID]'
    说明:[百万级]通用存储过程.分页存储过程..返回指定返回条数、指定页数的记录
    作者:Dili J.F. Senders
      邮件:diliatwellknow.net
      网站:http://www.wellknow.net
      更新:20040610
      支持:http://bbs.wellknow.net
    */

    CREATE PROCEDURE dbo.spAll_ReturnRows
    (
    @SQL nVARCHAR(4000),
    @Page int,
    @RecsPerPage int,
    @ID VARCHAR(255),
    @Sort VARCHAR(255)
    )
    AS

    DECLARE @Str nVARCHAR(4000)

    SET @Str='SELECT   TOP '+CAST(@RecsPerPage AS VARCHAR(20))+' * FROM ('+@SQL+') T WHERE

    T.'+@ID+' NOT IN
    (SELECT   TOP '+CAST((@RecsPerPage*(@Page-1)) AS VARCHAR(20))+' '+@ID+' FROM ('+@SQL+') T9

    ORDER BY '+@Sort+') ORDER BY '+@Sort

    PRINT @Str

    EXEC sp_ExecuteSql @Str
    GO

    CREATE PROCEDURE GetRecordFromPage
    @tblName varchar(255), -- 表名
    @fldName varchar(255), -- 字段名
    @PageSize int = 10, -- 页尺寸
    @PageIndex int = 1, -- 页码
    @IsCount bit = 0, -- 返回记录总数, 非 0 值则返回
    @OrderType bit = 0, -- 设置排序类型, 非 0 值则降序
    @strWhere varchar(4000) = '' -- 查询条件 (注意: 不要加 where)
    AS

    declare @strSQL varchar(6000) -- 主语句
    declare @strTmp varchar(6000) -- 临时变量
    declare @strOrder varchar(6000) -- 排序类型

    if @OrderType != 0
    begin
    set @strTmp = "<(select min"
    set @strOrder = " order by [" + @fldName +"] desc"
    end
    else
    begin
    set @strTmp = ">(select max"
    set @strOrder = " order by [" + @fldName +"] asc"
    end

    set @strSQL = "select top " + str(@PageSize) + " * from ["
    + @tblName + "] where [" + @fldName + "]" + @strTmp + "(["
    + @fldName + "]) from (select top " + str((@PageIndex-1)*@PageSize) + " ["
    + @fldName + "] from [" + @tblName + "]" + @strOrder + ") as tblTmp)"
    + @strOrder

    if @strWhere != ''
    set @strSQL = "select top " + str(@PageSize) + " * from ["
    + @tblName + "] where [" + @fldName + "]" + @strTmp + "(["
    + @fldName + "]) from (select top " + str((@PageIndex-1)*@PageSize) + " ["
    + @fldName + "] from [" + @tblName + "] where (" + @strWhere + ") "
    + @strOrder + ") as tblTmp) and (" + @strWhere + ") " + @strOrder

    if @PageIndex = 1
    begin
    set @strTmp = ""
    if @strWhere != ''
    set @strTmp = " where (" + @strWhere + ")"

    set @strSQL = "select top " + str(@PageSize) + " * from ["
    + @tblName + "]" + @strTmp + " " + @strOrder
    end

    if @IsCount != 0
    set @strSQL = "select count(*) as Total from [" + @tblName + "]"

    exec (@strSQL)
    GO

    CREATE PROCEDURE dbo.GetPageRecord
    (
    @tblName varchar(255), -- 表名
    @fldlist varchar(1000)='*',
    @fldName varchar(255), --排序字段
    @KeyField varchar(255), --主键
    @PageSize int = 10, -- 页尺寸
    @PageIndex int = 1, -- 页码
    @IsCount bit = 0, -- 返回记录总数, 非 0 值则返回
    @OrderType bit = 1, -- 设置排序类型, 非 0 值则降序
    @strWhere varchar(4000) = '' -- 查询条件 (注意: 不要加 where)
    )
    AS
    SET NOCOUNT ON
    DECLARE @PageLowerBound int
    DECLARE @PageUpperBound int

    -- Set the page bounds
    SET @PageLowerBound = @PageSize * @PageIndex
    SET @PageUpperBound = @PageLowerBound + @PageSize + 1

    -- Create a temp table to store the select results
    create table #temp
    (
    RecNo int IDENTITY (1, 1) NOT NULL,
    oldid int
    )
    --generate record
    Declare @Sqlstr varchar(6000)
    set @sqlstr='select '+@Keyfield+' from '+@tblname
    if(@strWhere<>'')
    begin
    set @Sqlstr=@sqlstr+' where ('+@strWhere+')'
    end
    set @sqlstr=@sqlstr+' order by '+@fldName
    if(@ordertype=0)
    begin
    set @sqlstr=@sqlstr+' asc'
    end
    else
    begin
    set @sqlstr=@sqlstr+' desc'
    end
    set @sqlstr='insert into #temp (oldid) '+@sqlstr
    execute(@sqlstr)
    set @sqlstr='SELECT '+@fldList+' FROM '+@tblname+' TableA (nolock), #temp T WHERE T.oldid =

    TableA.'+@keyfield+' AND T.RecNo > '+ cast(@PageLowerBound as varchar)+' AND T.RecNo <

    '+cast(@PageUpperBound as varchar)+' ORDER BY T.RecNo'
    execute(@sqlstr)
    GO

    create PROCEDURE dbo.GetPagingData
    (
    @tablename varchar(100),--表名或视图表
    @fieldlist varchar(4000)='*',--欲选择字段列表
    @orderfield varchar(100),--排序字段
    @keyfield varchar(100),--主键
    @pageindex int,--页号,从0开始
    @pagesize int=20,--页尺寸
    @strwhere varchar(4000),--条件
    @ordertype bit=1--排序,1,降序,0,升序
    )
    AS
    /**//*
    名称:GetPagingRecord
    作用:按任意字段进行排序分页
    作者:菩提树(MARK MA)
    时间:2004-12-14
    声明:此代码你可以无偿使用及转载,但在转载时,请勿移称本文字声明
    */
    SET NOCOUNT ON
    declare @sqlstr varchar(6000)
    --处理SQL中危险字符,并且将条件处理成易嵌入的形式
    set @sqlstr='declare @Rcount int;'
    set @sqlstr=@sqlstr+'set @rcount=(select count('+@keyfield+') from '+@tablename+' where

    '+@strWhere+');'
    set @strwhere=replace(@strwhere,'''','''''')
    set @strwhere=replace(@strwhere,'--','')
    set @strwhere=replace(@strwhere,';','')
    set @sqlstr=@sqlstr+'declare @Rnum int;'
    set @sqlstr=@sqlstr+'set @rnum=@rcount-'+cast(@pagesize as varchar)+'*'+cast(@pageindex as

    varchar)+';'
    set @sqlstr=@sqlstr+'declare @sqlstr varchar(6000);'
    if @ordertype=1
    begin
    set @sqlstr=@sqlstr+'set @sqlstr=''select top '+cast(@Pagesize as varchar)+' '+@fieldlist+'

    from (select top 100

    percent * from (select top ''+cast(@rnum as varchar)+'' * from '+@tablename+' where

    '+@strwhere+'

    order by '+@orderfield+' asc) as b order by paymoney desc) as a order by '+@orderfield+'

    desc '';'
    end
    else
    begin
    set @sqlstr=@sqlstr+'set @sqlstr=''select top '+cast(@Pagesize as varchar)+' '+@fieldlist+'

    from (select top 100

    percent * from (select top ''+cast(@rnum as varchar)+'' * from '+@tablename+' where

    '+@strwhere+'

    order by '+@orderfield+' desc) as b order by paymoney asc) as a order by '+@orderfield+' asc

    '';'
    end
    set @sqlstr=@sqlstr+'if @Rcount>0 begin execute(@sqlstr) end'
    --print @sqlstr
    execute(@sqlstr)
    在上面的代码中,还处理了没有符合条件结果的情况
    第二种方案的思想是这样的,先用倒序的SELECT TOP (页序号+1)*页尺寸的方法取得AE结果集,再从AE结果

    集中用NOT IN 的方法排除掉用SELECT TOP 页序号*页尺寸的方法取得的结果集,最后,对目标结果集执行

    倒序,下面是实现的代码
    create PROCEDURE dbo.GetPagingRecord
    (
    @tablename varchar(100),--表名或视图表
    @fieldlist varchar(4000)='*',--欲选择字段列表
    @orderfield varchar(100),--排序字段
    @keyfield varchar(100),--主键
    @pageindex int,--页号,从0开始
    @pagesize int=20,--页尺寸
    @strwhere varchar(4000),--条件
    @ordertype bit=1--排序,1,降序,0,升序
    )
    AS
    /**//*
    名称:GetPagingRecord
    作用:按任意字段进行排序分页
    作者:菩提树(MARK MA)
    时间:2004-12-14
    声明:此代码你可以无偿使用及转载,但在转载时,请勿移称本文字声明
    */
    SET NOCOUNT ON
    declare @sqlstr varchar(6000)
    --处理SQL中危险字符,并且将条件处理成易嵌入的形式
    set @strwhere=replace(@strwhere,'''','''''')
    set @strwhere=replace(@strwhere,'--','')
    set @strwhere=replace(@strwhere,';','')
    set @sqlstr='declare @CurPageNum int;'
    set @sqlstr=@sqlstr+'declare @nextpagenum int;'
    set @sqlstr=@sqlstr+'set @curpagenum='+cast(@PageIndex as varchar)+'*'+cast(@Pagesize as

    varchar)+';'
    set @sqlstr=@sqlstr+'set @nextpagenum='+cast(@PageIndex+1 as varchar)+'*'+cast(@Pagesize as

    varchar)+';'
    set @sqlstr=@sqlstr+'declare @sqlstr varchar(6000);'
    if @ordertype=1
    begin
    set @sqlstr=@sqlstr+'set @sqlstr=''select '+@fieldlist+' from ( select top ''+cast

    (@nextpagenum as varchar)+'' * from

    '+@tablename+' where '+@strwhere+' order by '+@orderfield+' desc ) as a where '+@keyfield+'

    not in (

    select top ''+cast(@curpagenum as varchar)+'' '+@keyfield+' from '+@tablename+' where

    '+@strwhere+'

    order by '+@orderfield+' desc) order by '+@orderfield+' desc'';'
    end
    else
    begin
    set @sqlstr=@sqlstr+'set @sqlstr=''select '+@fieldlist+' from ( select top ''+cast

    (@nextpagenum as varchar)+'' * from

    '+@tablename+' where '+@strwhere+' order by '+@orderfield+' asc ) as a where '+@keyfield+'

    not in (

    select top ''+cast(@curpagenum as varchar)+'' '+@keyfield+' from '+@tablename+' where

    '+@strwhere+'

    order by '+@orderfield+' asc) order by '+@orderfield+' asc'';'
    end
    set @sqlstr=@sqlstr+'execute( @sqlstr)'
    --print @sqlstr
    execute(@sqlstr)
    需要注意的是,如果要避免SQL注入式攻击,请注意处理像分号,双减号,单引号这些在SQL中有特殊含义的字

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  • 原文地址:https://www.cnblogs.com/EasonWu/p/1085488.html
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