SQL
SQL was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce after learning about the relational model from Ted Codd in the early 1970s. This version, initially called "SEQUEL" ("Structured English Query Language"), was designed to manipulate and retrieve data stored in IBM's original quasi-relational database management system, System R, which a group at IBM San Jose Research Laboratory had developed during the 1970s.
WebScaleSQL
WebScaleSQL was announced on March 27, 2014 as a joint effort of Facebook, Google, LinkedIn and Twitter (with Alibaba Group joining in January 2015), aiming to provide a centralized development structure for extending MySQL with new features specific to its large-scale deployments, such as building large replicated databases running on server farms. As a result, WebScaleSQL attempted to open a path toward deduplicating the efforts each founding company had been putting into maintaining its own branch of MySQL, and toward bringing together more developers.