Chronological overview of the editions (which have the year of publication in their name): •
SQL-86 ANSI X3.135:1986 •
SQL-87 ISO/IEC 9075:1987 - 1st edition, based on the ANSI standard •
SQL-89, ANSI X3.135-1989, ISO/IEC 9075:1989 - 2nd edition •
SQL-92, ANSI X3.135-1992, ISO/IEC 9075:1992 - 3rd edition •
SQL:1999, ISO/IEC 9075:1999 - 4th edition •
SQL:2003, ISO/IEC 9075:2003 - 5th edition •
SQL:2006, ISO/IEC 9075-14:2006 - (adds Part 14) •
SQL:2008, ISO/IEC 9075:2008 - 6th edition •
SQL:2011, ISO/IEC 9075:2011 - 7th edition •
SQL:2016, ISO/IEC 9075:2016 - 8th edition •
SQL:2019, ISO/IEC 9075-15:2019 - (adds Part 15) •
SQL:2023, ISO/IEC 9075:2023 - 9th edition New editions of the ISO standard are published regularly. ==References==