There was also QUEL. The original language for Ingress out of UCB.
> On 09/14/2021 9:51 AM David Goodenough > <david.goodeno...@broadwellmanor.co.uk> wrote: > > > On Tuesday, 14 September 2021 14:06:13 BST Merlin Moncure wrote: > > On Tue, Sep 14, 2021 at 12:32 AM Guyren Howe <guy...@gmail.com> wrote: > > > If I had $5 million to invest in a startup, I would hire as many of > the > > > core Postgres devs as I could to make a new database with all the > > > sophistication of Postgres but based on Datalog (or something > similar). > > > (Or maybe add Datalog to Postgres). If that could get traction, it > would > > > lead in a decade to a revolution in productivity in our industry. > > I've long thought that there is more algebraic type syntax sitting > > underneath SQL yearning to get out. If you wanted to try something > > like that today, a language pre-compiler or translator which converted > > the code to SQL is likely the only realistic approach if you wanted to > > get traction. History is not very kind to these approaches though and > > SQL is evolving and has huge investments behind it...much more than 5 > > million bucks. > > > > ORMs a function of poor development culture and vendor advocacy, not > > the fault of SQL. If developers don't understand or are unwilling to > > use joins in language A, they won't in language B either. > > > > merlin > Back in the day, within IBM there were two separate relational databases. > System-R (which came from San Hose) and PRTV (the Peterlee Relational Test > vehicle). As I understand it SQL came from System-R and the optimizer > (amongst other things) came from PRTV. > > PRTV > (https://en.wikipedia.org/wiki/IBM_Peterlee_Relational_Test_Vehicle_(PRTV)) > did not use SQL, and was never a released product, except with a graphical > add-on which was sold to two UK local authorities for urban planning. > > So there are (and always have been) different ways to send requests to a > relational DB, it is just that SQL won the day. >
