记录一次SQL查询语句

 以前发现比较经典的句子，都是记录在电脑上，我今天想搬到博客上，在我看来，写博客真的是一件非常头疼的事，它是内心的一道坎，我必须得跨过它。

CREATE TABLE t_jeff (
  id int NOT NULL,
  VINNumber varchar(255) DEFAULT NULL,
 ChannelID varchar(255) DEFAULT NULL,
  TimeStamp datetime DEFAULT NULL,
  PRIMARY KEY (id)
) ;
INSERT INTO t_jeff VALUES ('1', 'Group3', '3', '2015-05-27 00:00:00');
INSERT INTO t_jeff VALUES ('2', 'Group2', '5', '2015-05-23 00:00:00');
INSERT INTO t_jeff VALUES ('3', 'Group1', '4', '2015-05-25 00:00:00');
INSERT INTO t_jeff VALUES ('4', 'Group2', '3', '2015-05-29 00:00:00');
INSERT INTO t_jeff VALUES ('7', 'Group1', '2', '2015-05-30 00:00:00');


SELECT * FROM t_jeff
--1、VINNumber同组的放一起
--2、组之间排序逻辑：按照每组ChannelID最大值 倒序
--3、组内排序：按照ChannelID倒序。

SELECT  A.*
FROM    [dbo].[t_jeff] A
        JOIN ( SELECT   MAX([ChannelID]) AS [MaxChannelID] ,
                        [VINNumber]
               FROM     [dbo].[t_jeff]
               GROUP BY [VINNumber]
             ) B ON A.VINNumber = B.VINNumber
ORDER BY B.MaxChannelID DESC ,
        A.ChannelID DESC