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Which are the two ways in which entities can participate in a relationship?

  • A.Passive and active
  • B.
    Total and partial
  • C.Simple and Complex
  • D.All of the above

Answer: B

Correct answer: Total and partial

Participation is total when every entity of the set must take part in the relationship - every loan must have a borrower - and partial when only some need to. In an E-R diagram total participation is drawn with a double line.

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