支持任意排序的分页存储过程(asp.net/sqlserver)

作者：袖梨 2022-06-25

代码如下

复制代码

------------------------------------
--用途：支持任意排序的分页存储过程
--说明：
------------------------------------

CREATE PROCEDURE [dbo].[UP_GetRecordByPageOrder]

@tblName varchar(255),   -- 表名
@fldName varchar(255),   -- 显示字段名
@OrderfldName varchar(255), -- 排序字段名
@StatfldName varchar(255), -- 统计字段名
@PageSize int = 10,   -- 页尺寸
@PageIndex int = 1,   -- 页码
@IsReCount 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(1000) = '' -- 查询条件 (注意: 不要加 where)
AS

declare @strSQL varchar(6000) -- 主语句
declare @strTmp varchar(100)   -- 临时变量(查询条件过长时可能会出错，可修改100为1000)
declare @strOrder varchar(400) -- 排序类型

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

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

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

if @IsReCount != 0
set @strSQL = @strSQL+' select count(1) as Total from [' + @tblName + ']'

if @strWhere!=''
set @strSQL = @strSQL+' where ' + @strWhere
exec (@strSQL)

------------------------------------
--用途：分页存储过程(对有主键的表效率极高)
--说明：
------------------------------------

代码如下

复制代码

CREATE PROCEDURE [dbo].[UP_GetRecordByPage]
     @tblName      varchar(255),       -- 表名
     @fldName      varchar(255),       -- 主键字段名
     @PageSize     int = 10,           -- 页尺寸
     @PageIndex    int = 1,            -- 页码
     @IsReCount    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(1000) = '' -- 查询条件 (注意: 不要加 where)
AS

declare @strSQL   varchar(6000)       -- 主语句
declare @strTmp   varchar(100)        -- 临时变量(查询条件过长时可能会出错，可修改100为1000)
declare @strOrder varchar(400)        -- 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 @IsReCount != 0
     set @strSQL = 'select count(*) as Total from [' + @tblName + ']'+' where ' + @strWhere

exec (@strSQL)

下面是存储过程（sqlserver2000下通过)

--最通用的分页存储过程
-- 获取指定页的数据

代码如下

复制代码

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 + ']' +

代码如下

复制代码

@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

下面是C#的代码

代码如下

复制代码

using System.Data ;
using System.Data.SqlClient ;
using Microsoft.ApplicationBlocks.Data ;
using System.Web ;
using System.Web.UI ;
namespace RssLayer.PageHelper
{
/**////

/// 分页类PagerHelper 的摘要说明。
///

    public class PagerHelper
    {
        private string connectionString;



        public PagerHelper(string tblname,string sortname,bool docount,string connectionString)
        {
            this.tblName = tblname;
            this.fldName = sortname ;
            this.connectionString = connectionString ;
            this.docount = docount;
        }

        public PagerHelper(string tblname,bool docount,
            string strGetFields,    string fldName,int pagesize,
            int pageindex,bool ordertype,string strwhere,string connectionString
            )
        {
            this.tblName = tblname ;
            this.docount = docount ;
            this.strGetFields = strGetFields ;
            this.fldName = fldName;
            this.pagesize = pagesize ;
            this.pageindex = pageindex;
            this.ordertype = ordertype ;
            this.strwhere = strwhere ;
            this.connectionString = connectionString ;

        }

        /**////

/// 得到记录集的构造函数
///

        ///
        ///
        ///
        public PagerHelper(string tblname,string strwhere,string connectionString)
        {
            this.tblName = tblname;
            this.strwhere = strwhere ;
            this.docount = true;
            this.connectionString = connectionString ;
        }

        private string tblName;
        public string TblName
        {
            get{return tblName;}
            set{tblName =value;}
        }

        private string strGetFields="*";
        public string StrGetFields
        {
            get{return strGetFields ;}
            set{strGetFields =value;}
        }

        private string fldName=string.Empty;
        public string FldName
        {
            get{return fldName ;}
            set{fldName =value;}
        }



        private int pagesize =10;
        public int PageSize
        {
            get{return pagesize ;}
            set{pagesize =value;}
        }

        private int pageindex =1;
        public int PageIndex
        {
            get{return pageindex ;}
            set{pageindex =value;}
        }

        private bool docount=false;
        public bool DoCount
        {
            get{return docount ;}
            set{docount =value;}
        }

        private bool ordertype=false;
        public bool OrderType
        {
            get{return ordertype ;}
            set{ordertype =value;}
        }

        private string strwhere=string.Empty ;
        public string StrWhere
        {
            get{return strwhere ;}
            set{strwhere =value;}
        }





        public IDataReader GetDataReader()
        {

            if(this.docount)
            {
                throw new ArgumentException("要返回记录集，DoCount属性一定为false");
            }



        //    System.Web.HttpContext.Current.Response.Write(pageindex);

            return SqlHelper.ExecuteReader(connectionString,CommandType.StoredProcedure,"Pagination",
                new SqlParameter("@tblName",this.tblName),
                new SqlParameter("@strGetFields",this.strGetFields),
                new SqlParameter("@fldName",this.fldName),
                new SqlParameter("@PageSize",this.pagesize),
                new SqlParameter("@PageIndex",this.pageindex),
                new SqlParameter("@doCount",this.docount),
                new SqlParameter("@OrderType",this.ordertype),
                new SqlParameter("@strWhere",this.strwhere)
                );
        }

        public DataSet GetDataSet()
        {
            if(this.docount)
            {
                throw new ArgumentException("要返回记录集，DoCount属性一定为false");
            }

            return SqlHelper.ExecuteDataset(connectionString,CommandType.StoredProcedure,"Pagination",
                new SqlParameter("@tblName",this.tblName),
                new SqlParameter("@strGetFields",this.strGetFields),
                new SqlParameter("@fldName",this.fldName),
                new SqlParameter("@PageSize",this.pagesize),
                new SqlParameter("@PageIndex",this.pageindex),
                new SqlParameter("@doCount",this.docount),
                new SqlParameter("@OrderType",this.ordertype),
                new SqlParameter("@strWhere",this.strwhere)
                );
        }

        public int GetCount()
        {
            if(!this.docount)
            {
                throw new ArgumentException("要返回总数统计，DoCount属性一定为true");
            }



            return (int)SqlHelper.ExecuteScalar(connectionString,CommandType.StoredProcedure,"Pagination",
                new SqlParameter("@tblName",this.tblName),
                new SqlParameter("@strGetFields",this.strGetFields),
                new SqlParameter("@fldName",this.fldName),
                new SqlParameter("@PageSize",this.pagesize),
                new SqlParameter("@PageIndex",this.pageindex),
                new SqlParameter("@doCount",this.docount),
                new SqlParameter("@OrderType",this.ordertype),
                new SqlParameter("@strWhere",this.strwhere)
                );
        }

    }



}

支持任意排序的分页存储过程(asp.net/sqlserver)

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