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.
NonStop SQL
The second version added /MP to its name, for Massively Parallel. A third version, NonStop SQL/MX, was an attempt by Tandem Computers to create a product that was more SQL ANSI compliant than its predecessor. To enter competition with other vendors like Oracle, it was developed in the mid 1990s for the Microsoft Windows NT operating system, but the product never came out on NT and the focus was redirected to developing it on the NonStop platform. NonStop SQL/MX has shipped on the NonStop platform since 2002, and can access tables that have been created by NonStop SQL/MP, although only "Native SQL/MX tables" offer the ANSI compliance and many "Oracle-like" enhancements. The HP Neoview business intelligence platform was built using NonStop SQL as its origins. NonStop SQL/MX still thrives today and is the only OLTP database product HP owns.