thomas.sa...@fiserv.com (Savor, Thomas , Alpharetta) writes: > Management System or DBMS in 1983 when IBM >released DB2 on its MVS > mainframe platform." -- Wikipedia, citing an IBM manual as authority. > > All these years, I've have only known of DB2. The name seems to have stuck. > > Was there ever a DB1 ?? > Will there ever be a DB3 ??
The original sql/relational implementation was at SJR (bldg. 28 on main plant site, using modified vm/370 on 370/145), System/R. History/Reunion: http://www.mcjones.org/System_R/ wiki https://en.wikipedia.org/wiki/IBM_System_R and another history http://www.theregister.co.uk/2013/11/20/ibm_system_r_making_relational_really_real/ and http://www.cs.ubc.ca/~rap/teaching/504/2010/readings/history-of-system-r.pdf The official new DBMS project was EAGLE .... with the corporation focused on EAGLE it was possible to get System/R out the door as SQL/DS (under the radar). When EAGLE imploded, there was a request about how fast would it take to port System/R to MVS ... eventually released as DB2 (originally for analytical & decision support *only*). past posts mentioning System/R http://www.garlic.com/~lynn/submain.html#systemr also referenced here http://www.mcjones.org/System_R/citations.html The Birth of SQL http://www.mcjones.org/System_R/SQL_Reunion_95/sqlr95-The.html Some discussion of EAGLE and then DB2 http://www.mcjones.org/System_R/SQL_Reunion_95/sqlr95-DB2.html I periodically reference this post about Jan1992 meeting in Ellison's conference room http://www.garlic.com/~lynn/95.html#13 one of the people in the meeting would tell how he was responsible for the majority of the tech transfer into the Santa Teresa Lab (now silicon valley lab) for DB2. Jim Gray departs for Tandem palming off some number of things on me ... old email ref: http://www.garlic.com/~lynn/2007.html#email801016 Eventually IBM Toronto starts RDBMS for IBM/PC ... implemented in C .. which is made available on other platforms and is also called DB2 ... even though it is totally different code base from the mainframe implementation. SQL/DS is also eventually renamed DB2 https://en.wikipedia.org/wiki/IBM_SQL/DS -- virtualization experience starting Jan1968, online at home since Mar1970 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
