Sybase/IQ (now SAP IQ, originally acquired from Expressway) was launched in 1995. There are other old column databases, such as kdb, but I believe Sybase/Expes

Sybase/IQ (now SAP IQ, originally acquired from Expressway) was launched in 1995. There are other old column databases, such as kdb, but I believe Sybase/Expessway was the first commercial product.