Who developed the relational model in 1970?

Question

BlackTom AI · Accepted Answer

The question asks: Who developed the relational model in 1970?
Option 1: 'Larry Ellison' — While Ellison is a prominent figure in database technology as a founder of Oracle, he did not develop the relational model in 1970.
Option 2: 'Peter Chen' — Chen is known for the entity-relationship model and his later work on semantic modeling, not for developing the relational model itself in 1970.
Option 3: 'Charles Bachman' — Bachman is associated with the Integrated Data Store and the network/IDEF1 data modeling work, not the relational model introduced in 1970.
Option 4: 'E.F. Codd' — This is the historically accurate choice: Edgar F. Codd proposed the relational model in 1970 while working at IBM, outlining the principles of relations, tuples, and sets that form the basis of relational databases.

Why other options are incorrect:
- Larry Ellison is tied to Oracle and commercial database development, but not to the original formulation of the relational model in 1970.
- Peter Chen contributed significantly to the Entity-Relationship model, which is a different modeling approach from the relational model; his key work is not the 1970 relational model proposal.
- Charles Bachman played a pivotal role in early database systems and data modeling (e.g., network models) but not in the 1970 relational model proposal.

In summary, the statement aligns with historical records: E.F. Codd introduced the relational model in 1970, distinguishing it from other data modeling paradigms of the era.

Who developed the relational model in 1970?单项选择题

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