• 动态存储过程分页


    实际工作中需要在SQL Server2000中实现存储过程分页,存储过程如下:

    Create PROCEDURE pagination
    @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 = 10, -- 页尺寸
    @PageIndex int = 1, -- 页码
    @doCount 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(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
    --以上代码的意思是如果@doCount传递过来的不是0,就执行总数统计。以下的所有代码都是@doCount为0的情况

    else
    begin
    if @OrderType != 0
    begin
    set @strTmp = '<(select min'
    set @strOrder = ' order by [' + @fldName +'] desc'
    --如果@OrderType不是0,就执行降序,这句很重要!
    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
    --如果是第一页就执行以上代码,这样会加快执行速度
    end
    else
    begin
    --以下代码赋予了@strSQL以真正执行的SQL代码
    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/guoxiaowen/p/1446315.html
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