.net海量数据分页通用存储过程

CREATE PROCEDURE search_sp
@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 = '', -- 页码 
@doCount bit = 0, -- 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 nvarchar(4000) -- 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(1) as Total from [' + @tblName + '] where '+@strWhere 
else 
set @strSQL = 'select count(1) 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 SP_EXECUTESQL @strSQL

GO

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/duanxifeng888/archive/2010/08/22/5830461.aspx

private static DataSet GetCustomersData(string tblName, string strGetFields,string fldName, int PageSize, int PageIndex, int doCount, int OrderType, string strWhere)

{

    string connString = ConfigurationSettings.AppSettings["connstr"];

     SqlConnection conn = new SqlConnection(connString);

     SqlCommand comm = new SqlCommand("search_sp", conn);

 

     comm.Parameters.Add(new SqlParameter("@tblName", SqlDbType.VarChar));//表名

     comm.Parameters[0].Value =tblName ;

     comm.Parameters.Add(new SqlParameter("@strGetFields", SqlDbType.VarChar));//返回的列

     comm.Parameters[1].Value = strGetFields;

     comm.Parameters.Add(new SqlParameter("@fldName", SqlDbType.VarChar));//排序的字段名

     comm.Parameters[2].Value = fldName;

     comm.Parameters.Add(new SqlParameter("@PageSize",SqlDbType.Int));//页尺寸
     comm.Parameters[3].Value = PageSize;

     comm.Parameters.Add(new SqlParameter("@PageIndex", SqlDbType.Int));//页码
     comm.Parameters[4].Value = PageIndex;

     comm.Parameters.Add(new SqlParameter("@doCount", SqlDbType.Int));//是否返回记录总数，0为不返回，1为返回
     comm.Parameters[5].Value = doCount;

     comm.Parameters.Add(new SqlParameter("@OrderType", SqlDbType.Int));//设置排序类型，0为升序，非0为降序
     comm.Parameters[6].Value = OrderType;

     comm.Parameters.Add(new SqlParameter("@strWhere", SqlDbType.VarChar));//where语句

     comm.Parameters[7].Value = strWhere;

     comm.CommandType = CommandType.StoredProcedure;

     SqlDataAdapter dataAdapter = new SqlDataAdapter(comm);

     DataSet ds = new DataSet();

     dataAdapter.Fill(ds);

     return ds;

}

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/duanxifeng888/archive/2010/08/22/5830461.aspx