History IBM Sequel language developed as part of System R project at the IBM San Jose Research Laboratory Renamed Structured Query Language(SQL) ANSI and ISO standard SQL: SQL-86 SQL-89 SQL-92 SQL:1999(language name became Y2K compliant!) SQL:2003 Commercial systems offer most,if not all,SQL-92 features,plus varying feature sets from later standards and special proprietary features. Not all examples here may work on your particular system. Database System Concepts,5th Edition,Oct 5,2006 3.3 Silberschatz,Korth and SudarshanDatabase System Concepts, 5 3.3 ©Silberschatz, Korth and Sudarshan th Edition, Oct 5, 2006 History IBM Sequel language developed as part of System R project at the IBM San Jose Research Laboratory Renamed Structured Query Language (SQL) ANSI and ISO standard SQL: SQL-86 SQL-89 SQL-92 SQL:1999 (language name became Y2K compliant!) SQL:2003 Commercial systems offer most, if not all, SQL-92 features, plus varying feature sets from later standards and special proprietary features. Not all examples here may work on your particular system