@Za ******
No, maybe in your country the second name is your middle name, but a lot of other countries don't share this opinion and see all given nanes just as first name.
The country I live, Netherlands is just one of these countries and just do not have middle names.
Just ask Google and you will get this answer:
"No, legally speaking, the Netherlands does not have a 'middle name' like in the United States, but you can have multiple official first names."