The T-SQL LAST_VALUE function is an analytic function and is used in SQL Server database to return the last value in an ordered set of values.
LAST_VALUE Syntax
				LAST_VALUE ( [ scalar_expression ] )  [ IGNORE NULLS | RESPECT NULLS ]
				
OVER ( [ partition_by_clause ] order_by_clause rows_range_clause ) 
			
LAST_VALUE Example
				
					select b.*,
						
			
FIRST_VALUE(b.name) OVER (ORDER BY b.price) AS FirstValue,
					
LAST_VALUE(b.name) OVER (ORDER BY b.price) AS LastValue
					
from books b;