The article states that Relational Software released the first commercial relational database in 1979. It also states that the first RDBMS sold was Multics Relational Store in 1978. If it was sold, wasn't it commercial? But, IBM sold System R to customers (Pratt & Whitney) I believe as early as 1977 and that is not even mentioned here. If they sold it, it was a supported product, therefore commercial. I'm old enough to remember that; maybe that is unfortunate :)
To be clear, I am not trying to argue here the point of who is first, you may have your own conditions for that definition. I was pointing a student at this article and then I realized that this information needs to be clarified. Maybe Relational Software/Oracle was the first to sell a significant number of copies? Maybe the definition of commercial used here needs to be stated?
Jmussman (talk) 17:44, 19 October 2019 (UTC)
This article was the subject of a Wiki Education Foundation-supported course assignment, between 6 September 2020 and 7 December 2020. Further details are available on the course page. Student editor(s): LBJJames.