IBM System R is a database system built as a research project at IBM's San Jose Research Laboratory beginning in 1974, led by Edgar Codd, to implement his ideas on relational databases. System R was a seminal project as the first implementation of SQL, which has since become the standard relational data query language.
IBM System R is a database system built as a research project at IBM's San Jose Research Laboratory beginning in 1974, led by Edgar Codd, to implement his ideas on relational databases. System R was a seminal project as the first implementation of SQL, which has since become the standard relational data query language.
Source: Wikipedia "IBM System R" · CC BY-SA 4.0
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