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 = ' 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 = ' 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 = '
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)
);
}

}




}

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