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  • 优秀的分页存储过程,可以改成性能最优良的分页类或函数或类

    CREATE PROCEDURE pagination3
    (
    @tblName varchar(255), -- 表名
    @strGetFields varchar(1000), -- 需要返回的列
    @fldName varchar(255), -- 排序的字段名
    @PageSize int, -- 页尺寸
    @PageIndex int, -- 页码
    @doCount bit, -- 返回记录总数, 非 0 值则返回
    @OrderType bit, -- 设置排序类型, 非 0 值则降序
    @strWhere varchar(1500) -- 查询条件 (注意: 不要加 where)
    )
    AS

    declare @strSQL varchar(5000) -- 主语句
    declare @strTmp varchar(110) -- 临时变量
    declare @strOrder varchar(400) -- 排序类型

    if @doCount !=0
    begin
    if @strWhere !=''
    set @strSQL = "select count(*) as Total from [" + @tblName + "] where "+@strWhere
    else
    set @strSQL = "select count(*) as Total from [" + @tblName + "]"
    end
    else
    begin
    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

    if @PageIndex = 1
    begin
    if @strWhere !=''
    set @strSQL = "select top " + str(@PageSize) +" "+@strGetFields+" from [" + @tblName + "] where " + @strWhere + " " + @strOrder
    else
    set @strSQL = "select top " + str(@PageSize) +" "+@strGetFields+ " from ["+ @tblName + "] "+ @strOrder

    end
    else
    begin

    set @strSQL = "select top " + str(@PageSize) +" "+@strGetFields+ " 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) +" "+@strGetFields+ " from ["+ @tblName + "] where [" + @fldName + "]" + @strTmp + "(["+ @fldName + "]) from (select top " + str((@PageIndex-1)*@PageSize) + " ["+ @fldName + "] from [" + @tblName + "] where " + @strWhere + " "+ @strOrder + ") as tblTmp) and " + @strWhere + " " + @strOrder
    end
    end
    exec (@strSQL)
    GO
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  • 原文地址:https://www.cnblogs.com/King0502/p/2019370.html
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