SQL - last datetime -


i have select 

select  fisrttable.[date , time],fisrttable.[new value],secondtable.[registering date] fisrttable join secondtable on fisrttable.[new value] = secondtable.[new value]  secondtable.[registering date] >= '26-05-2015  0:00'

i need select retrieve last datetime [new value], have

enter image description here

but want last row time

enter image description here

use below query.

with cte_1 (select  fisrttable.[date , time],fisrttable.[new value],secondtable.[registering date],         row_number()over(partition fisrttable.[new value] order fisrttable.[date , time] desc) rno fisrttable join secondtable on fisrttable.[new value] = secondtable.[new value]  secondtable.[registering date] >= '26-05-2015  0:00')  select [date , time],[new value],[registering date] cte_1 rno=1

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