row number分頁存儲過程

USE [GoodsSystem]
GO
/****** 对象:  StoredProcedure [dbo].[proc_table_paging]    脚本日期: 08/30/2010 16:03:48 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
/*
	使用 ROW_NUMBER() OVER 分页的例子

	WITH tb_temp AS
	(SELECT *,ROW_NUMBER() OVER (ORDER BY productid asc) as RowNumber from goods ) 

	SELECT * FROM tb_temp WHERE RowNumber between 50 and 60;
*/
--exec [dbo].[proc_table_paging] 'goods','gid','','price',10,10000,9,'',1
--drop proc [dbo].[proc_table_paging]
-----------------------------------------------
-- 使用 ROW_NUMBER() OVER 分页的存储过程
-----------------------------------------------
CREATE PROCEDURE [dbo].[proc_table_paging]
@tblName   varchar(255),            -- 表名
@keyFields  varchar(255),           -- 主键列名
@strGetFields varchar(1000) = '*',  -- 需要返回的列
@fldName varchar(255) = @keyFields, -- 排序的字段名
@PageSize   int = 10,               -- 页尺寸
@PageIndex  int = 1,                -- 页码
@OrderType bit = 0,                 -- 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)
@doCount  bit = 0                   -- 统计并返回记录总数, 非0值则返回

AS
	declare @strSQL   varchar(5000)       -- 主语句
	declare @strOrder varchar(400)        -- 排序类型
	declare @begin    varchar(20)         -- 起始行数
    declare @end      varchar(20)         -- 结束行数

    -- 默认返回所有列    
    if rtrim(ltrim(@strGetFields))=''
       set @strGetFields='*'
    -- 默认排序字段为主键列
    if rtrim(ltrim(@fldName))=''
       set @[email protected]
    -- 默认每页大小为10行记录
	if @PageSize<1
       set @PageSize=10
	-- 默认查询第一页
	if @PageIndex<1
       set @PageIndex=1
    -- 默认没有where子句
    if rtrim(ltrim(@strWhere))=''
       set @strWhere=''    
    -- 默认为0时升序排列，否则降序排列
    if @OrderType=0
       set @strOrder = 'asc'
    else 
       set @strOrder = 'desc'
    -- 默认为0时不进行记录数的统计，否则统计并返回共有几条记录符合查询条件
	if @doCount != 0
		begin
			if @strWhere !=''
				set @strSQL = 'select count(*) as Total from [' + @tblName + '] where ' + @strWhere
			else
				set @strSQL = 'select count(*) as Total from [' + @tblName + ']'        
        exec (@strSQL)        
		end


    -- 计算起始行数和终止行数
    set @begin = cast( @PageSize*(@PageIndex-1)+1 as varchar(20) )
    set @end = cast( @PageSize*@PageIndex as  varchar(20) )    

    -- 构造临时表
 	if @strWhere!=''
      begin
		set @strSQL = 'WITH tb_temp AS (SELECT '[email protected]+' ,ROW_NUMBER() OVER (ORDER BY '[email protected]+' '[email protected]+' )as RowNumber from '[email protected]+' where '[email protected]+') '
      end
    else
      begin
        set @strSQL = 'WITH tb_temp AS (SELECT '[email protected]+' ,ROW_NUMBER() OVER (ORDER BY '[email protected]+' '[email protected]+' )as RowNumber from '[email protected]+') '
      end

    -- 从临时表中查询出结果
    set @strSQL = @strSQL +	' SELECT '[email protected]+' FROM tb_temp	WHERE RowNumber between '[email protected]+' and '[email protected]  

    print @strSQL
    exec (@strSQL)