PostgreSQL has IMHO a nicer solution: abstract data types to represent IPv4, IPv6, and MAC addresses, along with the functions over those types that you'd expec

PostgreSQL has IMHO a nicer solution: abstract data types to represent IPv4, IPv6, and MAC addresses, along with the functions over those types that you'd expect. http://www.postgresql.org/docs/8.4/static/datatype-net-types.html http://www.postgresql.org/docs/8.4/static/datatype-net-types... http://www.postgresql.org/docs/8.4/static/functions-net.html http://www.postgresql.org/docs/8.4/static/functions-net.html