SEQUEL was predecessor of SQL. The Structured English QUEry Language, developed for System R by Boyce at IBM La Jolla Ca. in the early 1970. IBM changed SEQUEL to SQL due to legal reasons (British company of same name didn’t allow IBM to use this brand). Today IBM-guys pronounce SQL still SEE-QUEL. Rest of world usually pronounce it ESS-QUE-ELL. I personally prefer ESS-QUE-ELL. Well, MY-SEE-QUEL sounds somehow kind of factitious to me.