sql - removing duplicate values in column -


there column called r_no 3 duplicate values associated date column

r_no         date values 1            09-apr-2016  03:49:24 1            09-apr-2016 03:49:30  1            09-apr-2016 03:49:40

i want output as:

1 09-apr-2016 03:49:40

removing duplicate values latest date value

use show :

select top 1 id, date #temp order date desc

delete & show latest :

;with ttt (  select row_number() over(partition id order id)sr, date, id #temp )   delete  ttt date not in(select max(date) ttt)  select * #temp

explanation: cte grab of records , apply row number each unique entry. each additional entry incrementing number.


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