MySQL pronunciation can be "My S Q L" or "My Sequel." I think most people in the community probably use the latter, but truthfully most of us don't really care. The "S Q L" vs. "Sequel" split has existed almost as long as SQL itself. The original name for the language was "SEQUEL." [1] [1] https://en.wikipedia.org/wiki/SQL#History
What’s better is that “My” has nothing to do with possession, and it’s pronounced “Me”: it’s Widenius’ daughters name[0]. [0] https://en.wikipedia.org/wiki/Michael_Widenius
(in fact, the girls name actually sounds like the greek letter "mu" as it's spelled and pronounced in Swedish)