Multiple choice

In entity relationship, Y is the dominant entity and x is a subordinate entity. Which of the following options is correct?

  1. Operationally, if Y is deleted, so is x

  2. x is existence dependent on Y

  3. Operationally, x is deleted, so is Y

  4. Operationally, x is deleted, Y remains the same

Reveal answer Fill a bubble to check yourself
C Correct answer