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Which of the following products was the first to implement true relational algebra in a PC DBMS?

  • A.IDMS
  • B.Oracle
  • C.
    dBase-II
  • D.R:base

Answer: D

Correct answer: R:base

R:base was the first PC product to implement true relational algebra. dBase-II, though far more widely used, was a file-oriented product without genuine relational operations - a distinction that mattered a great deal in the arguments of the mid-1980s.

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