Which of the following products was an early implementation of the relational model developed by E.F. Codd of IBM? | Aptitude Question | AptiCode | AptiCode

Question 776: Which of the following products was an early implementation of the relational model developed by E.F. Codd of IBM?

tcs

wipro

infosys

general

aptitude

introduction-to-database

database

No answer description is available.Let's discuss.

IDMS

DB2

dBase-II

R:base