USE [hds15362526_db]
GO
/****** Object:  StoredProcedure [dbo].[sys_Page_v2]    Script Date: 04/11/2015 22:37:27 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[sys_Page_v2]
  @TableName VARCHAR(200),       --表名
    @FieldList VARCHAR(2000),    --显示列名
    @PrimaryKey VARCHAR(100),    --单一主键或唯一值键或联合主键列表(用英文,隔开)或能确定唯一行的多列列表(用英文,隔开)
    @Where VARCHAR(1000),        --查询条件 不含'where'字符
    @Order VARCHAR(1000),        --排序 不含'order by'字符,用英文,隔开  
    @RecorderCount INT,          --记录总数 0:会返回总记录
    @PageSize INT,               --每页输出的记录数
    @PageIndex INT,              --当前页数
    @TotalCount INT OUTPUT,      --返回记录总数
    @TotalPageCount INT OUTPUT   --返回总页数
AS

    SET NOCOUNT ON
    
    SET @FieldList = REPLACE(@FieldList,' ','')
    IF @FieldList = '*' 
        BEGIN SET @FieldList = 'A.*'END
    ELSE
        BEGIN
            SET @FieldList = 'A.' + REPLACE(@FieldList,',',',A.')
        END
    
    WHILE CHARINDEX(', ',@Order)>0
    BEGIN
        SET @Order = REPLACE(@Order,', ',',')
    END

    IF ISNULL(@TableName,'') = '' OR ISNULL(@PrimaryKey,'') = ''        
        OR @RecorderCount < 0 OR @PageSize < 0 OR @PageIndex < 0
    BEGIN        
        RETURN
    END
 
    DECLARE @new_where1 VARCHAR(1000)
    DECLARE @new_where2 VARCHAR(1000)
    DECLARE @new_where3 VARCHAR(1000)
    DECLARE @new_where4 VARCHAR(1000)
    DECLARE @new_order1 VARCHAR(1000)
    DECLARE @new_order2 VARCHAR(1000)
    DECLARE @Fields VARCHAR(1000)
    DECLARE @Sql VARCHAR(8000)
    DECLARE @SqlCount NVARCHAR(4000)

    SET @Fields = @PrimaryKey + ','
    SET @new_where2 = ''
    SET @new_where4 = ''


    IF ISNULL(@where,'') = ''
        BEGIN
            SET @new_where1 = ' '
            SET @new_where3 = ' WHERE '
        END
    ELSE
        BEGIN            
            SET @new_where1 = ' WHERE ' + @where + ' '
            SET @new_where3 = ' WHERE 1=1 ' 
                    + REPLACE(' AND ' + @where,' AND ',' AND A.')+ ' AND '
        END
    
    WHILE CHARINDEX(',',@Fields)>0
    BEGIN
        SET @new_where2 = @new_where2 
            + 'A.' + LTRIM(LEFT(@Fields,CHARINDEX(',',@Fields)-1))
            + ' = B.' + LTRIM(LEFT(@Fields,CHARINDEX(',',@Fields)-1)) + ' AND '
        SET @new_where4 = @new_where4 
            + 'B.' + LTRIM(LEFT(@Fields,CHARINDEX(',',@Fields)-1)) + ' IS NULL AND '
        SET @Fields = SUBSTRING(@Fields,CHARINDEX(',',@Fields)+1,LEN(@Fields))
    END
    SET @new_where2 = LEFT(@new_where2,LEN(@new_where2)-4)
    SET @new_where4 = LEFT(@new_where4,LEN(@new_where4)-4)

    IF ISNULL(@order,'') = '' 
        BEGIN
            SET @new_order1 = ''
            SET @new_order2 = ''
        END
    ELSE
        BEGIN
            SET @new_order1 = ' ORDER BY ' + @Order
            SET @new_order2 = ' ORDER BY ' 
                    + RIGHT(REPLACE(',' + @Order,',',', A.' ),
                            LEN(REPLACE(',' + @Order,',',', A.' ))-1)
        END

    SET @SqlCount = 'SELECT @TotalCount=COUNT(*),@TotalPageCount=CEILING((COUNT(*)+0.0)/'
                    + CAST(@PageSize AS VARCHAR)+') FROM ' + @TableName 
                    + ' A ' +  @new_where1
    
    IF @RecorderCount = 0
        BEGIN
             EXEC SP_EXECUTESQL @SqlCount,N'@TotalCount INT OUTPUT,@TotalPageCount INT OUTPUT',@TotalCount OUTPUT,@TotalPageCount OUTPUT
        END
    ELSE
        BEGIN
             SELECT @TotalCount = @RecorderCount            
        END

    IF @PageIndex > CEILING((@TotalCount+0.0)/@PageSize)
        BEGIN
            SET @PageIndex = CEILING((@TotalCount+0.0)/@PageSize)
        END
    IF @PageIndex = 1
        BEGIN
            SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ' + @TableName + ' A'+ @new_where1 + @new_order1
        END
    ELSE
        BEGIN
            SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ' 
                       + @TableName + ' A LEFT JOIN (SELECT TOP ' 
                       + STR(@PageSize*(@PageIndex-1)) 
                       + ' ' + @PrimaryKey + ' FROM ' + @TableName + @new_where1
                       + @new_order1 + ' )B ON ' + @new_where2 + @new_where3 
                       + @new_where4 + @new_order2
        END

EXEC(@Sql)