Sorting IP addresses in TSQL

Question

I need my IP list sorted. Problem is that i want them sorted after the value in the first part, then second part and so on.

MYTABLE

DATA
20.1.2.1
100.1.1.1
20.1         


        

Answer 1

Store the IP addresses as plain 32-bit integers (it's guaranteed they fit) and sort those. For IPv6 convert to a 128-bit integer instead.