SqlServer 超强通用分页存储过程

USE [PGCRM]
GO
/****** Object:  StoredProcedure [dbo].[SupesoftPage]    Script Date: 03/29/2013 12:15:26 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO





/*********************************************************************************
*      Copyright (C) 2005 141421.com,All Rights Reserved                         *
*      Function:  SuperPaging                                                     *
*      Description:                                                              *
*             超强通用分页存储过程                                                 *
*      Author:                                                                   *
*             邱学军(Ryan)                                                       *
*             lifergb@hotmail.com                                                *
*             http://www.141421.com                                              *
*      Finish DateTime:                                                          *
*             2005年9月24日                                                      *
*      History:                                                                     *
*             2006/4/21 Edit By Michael Li                                       *         
*       Example:                                                                     *
*              SuperPaging @TableName='表名',@Orderfld='排序列名'                 *           
*********************************************************************************/
ALTER PROCEDURE [dbo].[SupesoftPage]
(
    @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
    @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