How to generate a range of numbers between two numbers?

Question

I have two numbers as input from the user, like for example 1000 and 1050.

How do I generate the numbers between these two numbers, using

Answer 1

Here is a generic and relatively fast solution that outputs integers from 1 to @n. It works with any positive integer of @n (very large numbers will cause arithmetic overflow) without needing to add or remove table joins. It doesn't require the use of system tables nor do you to change max recursions.

declare @n int = 10000 

;with d as (select * from (values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9)) x (d)),
n as ( 
    select d x from d where d > 0 and d <= @n
    union all
    select x * 10 + d from n, d where x * 10 + d <= @n
)
select x from n 

You can add an order by clause to sort the numbers.