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-7th Edition 3.3 ©Silberscha乜，Korth and SudarshanDatabase System Concepts - 7 3.3 ©Silberschatz, Korth and Sudarshan th Edition 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