The only people I know who actually call it ess queue ell are either too new to know the "sequel" pronunciation, or the type of person you generally smell before you see.
I say ess cue ell for the sake of uniformity because it's not Mysequel nor Postgresequel and the language changed from Sequel to the acronym SQL in the 70s so not really in the "too new" ballpark anymore.
Here in Germany everyone I know pronounces the letters individually – as German letters that is, which means the Q is pronounced "coo" rather than "cue". I don't mind it, it's not quite as clunky as in English.
I'm neither, I refuse to pronounce acronyms if it doesn't make sense to do so.
Same thing with 'gooey' for GUI, except I hate that even more because that straight up elicits feelings of disgust, I don't want anything gooey anywhere near any electronics
Come they told me, pa rum pum pum pum
A new born King to see, pa rum pum pum pum
Our finest gifts we bring, pa rum pum pum pum
To lay before the King, pa rum pum pum pum,
rum pum pum pum, rum pum pum pum,
So to honor Him, pa rum pum pum pum,
When we come.
Little Bobby, pa rum pum pum pum
I am a poor boy too, pa rum pum pum pum
I have no gift to bring, pa rum pum pum pum
That's fit to give the King, pa rum pum pum pum,
rum pum pum pum, rum pum pum pum,
Shall I play for you, pa rum pum pum pum,
On my unsanitized database inputs?