Question

Need to move some code from MySql to TSql. I have a couple of calls to INET_ATON which converts a string which resembles an IPAddress into a number. Is there a T-SQL equivalent?

Answer 1

An abuse of the parsname function:

create function INET_ATON (@addr varchar(15)) returns bigint with schemabinding as begin   return       cast(parsename(@addr, 4) as bigint) * 16777216 +     cast(parsename(@addr, 3) as bigint) * 65536 +     cast(parsename(@addr, 2) as bigint) * 256 +     cast(parsename(@addr, 1) as bigint) end 

That ‘short form address’ thing is not supported here though.