Yes and No. I figure its simple enough to code select from [input 1] where [input 2] where [input 3] //I don't actually know SQl so thats likely wrong

Yes and No. I figure its simple enough to code select from [input 1] where [input 2] where [input 3] //I don't actually know SQl so thats likely wrong But its a bit sloppy for the user to use. Example: Naughty America's search system (its a porn site, feel free to judge) actually uses this layout (not with drop down menus mind you). But it presents a field of links, its also 3 levels deep. The first field is generic category, second is children of that category, so on and so forth. This system sucks. Its a pain to use and limits how the user can interact with your site. Especially when there is overlap between categories, where a level 2 category might belong to 4-5 different parents, now I have to select each parent category... I swear this was a solved problem when relational databases were invented in the 70's.