[support] MySQL noob: Update images to gallery tid

Hope you'll pardon my absolute lack of knowledge of SQL and give me a little clue or 2. I'm retroactively changing the photos layout on a site to Views Gallery, and need to update a couple of image nodes to the Term "gallery". Could do it manually, I guess, but I'd really love to know this trick. So I have nid 1,2,3,4, etc. that need to have the gallery tid = '1' (for argument's sake). Therefore I need to update the 'term_node' table - and INSERT where nid = 1,2,3,4 tid = '1' I think that makes sense? Thanks. :)