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Question

I have an \"Observation\" table in SQL Server 2008. This table has a locationId column for a bunch of geographic locations, a few columns for observation details and a colum

Answer 1

select a.* from observations a inner join 
(select locationid ,max(updateddate) dates  from observations
group by locationid) b
on a.locationid=b.locationid
and a.updateddate=b.dates  

Answer 2

 select * from observation where date=(select max(date) from observation)

or

select top 1 * from observation order by date desc

Answer 3

Use the Getdate function as I used as below.

select * from TBL_MP_QC_CustomerWiseCOA_Master  order by getdate() desc

Answer 4

Add a column to your table with a datatype of [timestamp] execute the following code:

select top(10) * from yourtablename order by columanname desc

Note:columanname should be the column you add with a timestamp type

Answer 5

Run query

select * from Observation 
group by location 
order by viewdate desc

Please also give the full details about table and what you want to get.

EDIT : Backtick removed.