History of SQL
https://docs.oracle.com/cd/B13789_01/server.101/b10759/intro001.htmDr. E. F. Codd published the paper, "A Relational Model of Data for
Large Shared Data Banks", in June 1970 in the Association of Computer
Machinery (ACM) journal, Communications of the ACM. Codd's model is now
accepted as the definitive model for relational database management
systems (RDBMS). The language, Structured English Query Language
(SEQUEL) was developed by IBM Corporation, Inc., to use Codd's
model. SEQUEL later became SQL (still pronounced "sequel"). In 1979,
Relational Software, Inc. (now Oracle) introduced the first commercially
available implementation of SQL. Today, SQL is accepted as the standard
RDBMS language.
RAMIS mid-60s, System/R, starting 1974 on VM370/CMS, SQL something
like decade later
https://en.wikipedia.org/wiki/IBM_System_R"Phase Zero" of the project, which occurred during 1974 and-most of
1975, involved the development of the SQL user interface
As undergraduate in 60s did a lot of work on CP67/CMS at the Univ and
Boeing, then when I graduate, I joined the science center and did a lot
more work on CP67/CMS and then VM370/CMS. I then transfer out to San
Jose Research and did work on System/R with Jim Gray and Vera
Watson. Lots of opposition inside the company, but while focus was on the
next great, new DBMS "EAGLE", managed to do tech. transfer to Endicott
("under the radar") for SQL/DS. Then after "EAGLE" implodes there is a
request for how fast could System/R be ported to MVS ... eventually
released as DB2 (for decision/support *ONLY*).
When Jim departs for Tandem in fall of 1980, he tries foisting off lots of
stuff on me. In spring 1981, I distribute a trip report of visit to Jim
at Tandem which kicks off internal online computer conferencing
(folklore is when corporate executive committee was told 5of6 wanted to
fire me). from IBMJargon ... copy here
https://web.archive.org/web/20241204163110/https://comlay.net/ibmjarg.pdf
Tandem Memos - n. Something constructive but hard to control; a fresh of
breath air (sic). That's another Tandem Memos. A phrase to worry middle
management. It refers to the computer-based conference (widely
distributed in 1981) in which many technical personnel expressed
dissatisfaction with the tools available to them at that time, and also
constructively criticized the way products were [are] developed. The
memos are required reading for anyone with a serious interest in quality
products. If you have not seen the memos, try reading the November 1981
Datamation summary.
-- virtualization experience starting Jan1968, online at home since Mar1970