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Author Question: When the child entity is required (M) in a relationship, there needs to be at least one child row ... (Read 73 times)

EY67

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on: Jul 7, 2018
When the child entity is required (M) in a relationship, there needs to be at least one child row for each parent row at all times.
 
  Indicate whether the statement is true or false

Question 2

Maximum cardinality refers to ________.
 
  A) the most instances of one entity class that can be involved in a relationship instance with another entity class
  B) the minimum number of entity classes involved in a relationship
  C) whether or not an instance of one entity class is required to be related to an instance of another entity class
  D) whether or not an entity is a weak entity


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elizabethrperez

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Reply #1 on: Jul 7, 2018
Answer to Question 1

TRUE

Answer to Question 2

A


EY67

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Reply #2 on: Jul 7, 2018
Thank you


elizabethrperez

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Reply #3 on: Jul 7, 2018
No problemo


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