在同一SQL查询中按顺序排序

Question

我正在使用sql server 2008，我有以下数据

sNames             sDate 
(varchar(MAX))    (date)
==========     =============
 ALS           10/02/2012
 SSP           11/03/2012
 MRP           11/05/2012
 ALS           14/06/2012
 ALS           04/10/2012
 ALS           03/11/2012
 MRP           05/09/2012
 PPL           18/08/2012

我想在desc中按sDate排序列表，但必须显示不同的sNames。请指导我

Answer 1

使用重复sNames的最新日期，您可以

select sNames, max(sDate)
from your_table
group by sNames
order by max(sDate) desc

Answer 2

尝试以下：

Select distinct snames 
from yourtable 
order by sdate desc

Answer 3

select max(sDate),sname from yourTable 
group by sname 
order by max(sDate) desc

Answer 4

SELECT DISTINCT sNames FROM <YOUR TABLE NAME> ORDER BY sDate DESC

Answer 5

SELECT DISTINCT sNames, sDate  
FROM <tableName>  
ORDER BY sDate DESC

Answer 6

select sName,sDate From [your_table] order by sDate Desc