Asp.Net分页存储过程
SQL分页语句
一、比较万能的分页:
sql代码:
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select top 每页显示的记录数 * from topic where id not in ( select top (当前的页数-1)×每页显示的记录数 id from topic order by id desc ) order by id desc |
需要注意的是在access中不能是top 0,所以如果数据只有一页的话就得做判断了。。
二、SQL2005中的分页代码:
sql代码:
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--讲查询出来的结果集作为一张临时表 with tempTable as ( select Row_Number() over ( order by id desc ) as RowNum, * from tableName ) --从临时表中取得指定行号区间的行 SELECT * FROM tempTable where RowNum between @startIndex and @endIndex |
注:ROW_NUMBER() OVER (ORDER BY id desc)为SQL2005新增函数,表示取出每一列的行号
三、分页存储过程SQL代码:
1、第一种UP_GetRecordByPage,包含计算总条数(推荐)
SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO ------------------------------------ --用途:分页存储过程 --说明: ------------------------------------ CREATE PROCEDURE [dbo].[UP_GetRecordByPage] @tblName varchar (255), -- 表名 @fldName varchar (255), -- 排序字段名 @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) = ‘1=1‘ -- 查询条件 (注意: 不要加 where) AS declare @ begin int ,@ end int ,@sql varchar (4000),@ order varchar (5) set @ begin =@PageSize* (@PageIndex-1) +1 set @ end =@ begin +@PageSize-1 set @ order = ‘‘ if(@OrderType=1) set @ order = ‘ desc‘ set @sql= ‘ select * from ( select ROW_NUMBER() over(order by ‘ + @fldName + @ order + ‘ ) as od, * from ‘ +@tblName + ‘ where ‘ + @strWhere + ‘) as tbl where od between ‘ + rtrim(ltrim(str(@ begin )))+ ‘ and ‘ + rtrim(ltrim(str(@ end ))) exec (@sql) if(@IsReCount=1) exec ( ‘select count(*) from ‘ + @tblName+ ‘ where ‘ +@strWhere) |
用法:
/// <summary> /// 分页获取数据列表 /// </summary> public DataSet GetList( int pageSize, int pageIndex, string strWhere, bool isCount) { SqlParameter[] parameters = { new SqlParameter( "@tblName" , SqlDbType.VarChar, 255), new SqlParameter( "@fldName" , SqlDbType.VarChar, 255), new SqlParameter( "@pageSize" , SqlDbType.Int), new SqlParameter( "@pageIndex" , SqlDbType.Int), new SqlParameter( "@IsReCount" , SqlDbType.Bit), new SqlParameter( "@OrderType" , SqlDbType.Bit), new SqlParameter( "@strWhere" , SqlDbType.VarChar,1000), }; parameters[0].Value = "Whir_MemberDownRuleValue" ; parameters[1].Value = "MemberLever" ; parameters[2].Value = pageSize; parameters[3].Value = pageIndex; if (isCount){ parameters[4].Value = 1; } else { parameters[4].Value = 0; } parameters[5].Value = 0; parameters[6].Value = strWhere; return DbHelperSQL.RunProcedure( "UP_GetRecordByPage" ,parameters, "ds" ); } |
2、sql代码:(不带计算总条数)
SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO -- ============================================= -- Author: 牛腩 -- Create date: 2009-07-22 12:41 -- Description: 分页,用到了ROW_NUMBER() -- ============================================= ALTER PROCEDURE [dbo].[proc_ShowPage] @tblName varchar (255), -- 表名,也可传入inner join内连接 @strGetFields varchar (1000) = ‘*‘ , -- 需要返回的列,默认* @strOrder varchar (255)= ‘‘ , -- 排序的字段名,必填 @strOrderType varchar (10)= ‘ASC‘ , -- 排序的方式,默认ASC @PageSize int = 10, -- 页尺寸,默认10 @PageIndex int = 1, -- 页码,默认1 @strWhere varchar (1500) = ‘‘ -- 查询条件 (注意: 不要加 where) AS declare @strSQL varchar (5000) if @strWhere != ‘‘ set @strWhere= ‘ where ‘ +@strWhere set @strSQL= ‘SELECT * FROM (‘ + ‘SELECT ROW_NUMBER() OVER (ORDER BY ‘ +@strOrder+ ‘ ‘ +@strOrderType+ ‘) AS pos,‘ +@strGetFields+ ‘ ‘ + ‘FROM [‘ +@tblName+ ‘] ‘ +@strWhere+ ‘) AS sp WHERE pos BETWEEN ‘ +str((@PageIndex-1)*@PageSize+1)+ ‘ AND ‘ +str(@PageIndex*@PageSize) exec (@strSQL) print @strSQL -- 测试用,可在查询的时候看到生成的SQL语句 |
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