what kind of culinary school to attend and for how long to qualified for DTV?

Thanks.

Hi everyone, I am new member in this group, thank you.

I am planning to visit Thailand this coming July to study Thai cuisine in Bangkok, is anyone can recommend a certified culinary school in this capital city. I am not looking for an elite and expensive school, very low budget I have had in my pocket and one more thing, do I have to come with a visiting visa or student visa Please advice, thank you so much beautiful people.

Jocelyn