数据分页

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[SuperPaging]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
drop procedure [dbo].[SuperPaging]
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO
/*********************************************************************************
*      Function:  SuperPaging              　　　　　　　　　　　　　 *
*      Description:                                                              　　*
*             超强通用分页存储过程                　　　　　　　　　　　　*          
*********************************************************************************/
CREATE PROCEDURE SuperPaging
(
 @TableName  nvarchar(50),   -- 表名
 @ReturnFields nvarchar(2000) = '*', -- 需要返回的列
 @PageSize  int = 10,    -- 每页记录数
 @PageIndex  int = 1,    -- 当前页码
 @Where   nvarchar(2000) = '', -- 查询条件,需要含有Where
 @Orderfld  nvarchar(2000),   -- 排序字段名 最好为唯一主键
 @OrderType  int = 1     -- 排序类型 1:降序 其它为升序 
)
AS
    DECLARE @TotalRecord int
 DECLARE @TotalPage int
 DECLARE @CurrentPageSize int
    DECLARE @TotalRecordForPageIndex int
    DECLARE @OrderBy nvarchar(255)
    DECLARE @CutOrderBy nvarchar(255)
 
 if @OrderType = 1
  BEGIN
   set @OrderBy = ' Order by ' + REPLACE(@Orderfld,',',' desc,') + ' desc '
   set @CutOrderBy = ' Order by '+ REPLACE(@Orderfld,',',' asc,') + ' asc '
  END
 else
  BEGIN
   set @OrderBy = ' Order by ' +  REPLACE(@Orderfld,',',' asc,') + ' asc '
   set @CutOrderBy = ' Order by '+ REPLACE(@Orderfld,',',' desc,') + ' desc '   
  END
 
 
        -- 记录总数
 declare @countSql nvarchar(4000) 
 set @countSql='SELECT @TotalRecord=Count(*) From '+@TableName+' '+@Where
 execute sp_executesql @countSql,N'@TotalRecord int out',@TotalRecord out
 
 SET @TotalPage=(@TotalRecord-1)/@PageSize+1
 SET @CurrentPageSize=@PageSize
    IF(@TotalPage=@PageIndex)
  BEGIN
   SET @CurrentPageSize=@TotalRecord%@PageSize
   IF(@CurrentPageSize=0)
    SET @CurrentPageSize=@PageSize
  END
 -- 返回记录
 set @TotalRecordForPageIndex=@PageIndex*@PageSize
 exec('SELECT * FROM
  (SELECT TOP '+@CurrentPageSize+' * FROM
   (SELECT TOP '+@TotalRecordForPageIndex+' '+@ReturnFields+'
   FROM '+@TableName+' '+@Where+' '+@OrderBy+') TB2
  '+@CutOrderBy+') TB3
              '+@OrderBy)
 -- 返回总页数和总记录数
 SELECT @TotalPage as PageCount,@TotalRecord as RecordCount
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO