for InterBase and FireBird

SQL-Standard of InterBase and FireBird-versions
InterBase 5.0        SQL 92 (also named SQL 2) 1992 InterBase 5.6        SQL 92 InterBase 6.0        SQL 92 InterBase 6.5        SQL 92 (in dialect 3) InterBase 7.0        SQL 92 (in dialect 3) InterBase 7.1        SQL 92 (in dialect 3) InterBase 7.5        SQL 92 (in dialect 3) InterBase 2007     SQL 92 (in dialect 3) FireBird 1.0          SQL 92 FireBird 1.5          SQL 99 (also named SQL 3) 1999 FireBird 2.0          mostly SQL 2003 (17 obligatoric functions missed (mostly Schemas), 9 obligatoric functions only partly)