Outline: A student visa best translates into a genuine authorization the government of the designated country issues to students who are already accepted at a certified educational establishment. The holder of this type of visa is not required to have the citizenship of the designated country in order to follow studies yet it is no immigrant visa either.
Every student with the citizenship of a country that requires a visa to enter the Schengen zone must obtain a student visa in order to follow studies in the educational institute of the designated Schengen country.
Depending on the embassy/consulate that you will be applying to, they might require additional documents to assure the request and the information are genuine, as for example, some embassies/consulates require a certificate that proves you have no legal issues pending or a criminal record. As, the students must personally hand the documentation at the previously made appointment (as usually it is required), the person in charge at the embassy/consulate will notify you if there is any additional documentation needed and the nature of that documentation.