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Author Question: Each entity type in an ER Diagram becomes an attribute. Indicate whether the statement is true or ... (Read 61 times)

Evvie72

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on: Jul 7, 2018
Each entity type in an ER Diagram becomes an attribute.
 
  Indicate whether the statement is true or false

Question 2

Referential integrity specifies that the value of an attribute of one relation depends on the existence of the same attribute in another relation.
 
  Indicate whether the statement is true or false


fromAlphatoOmega22

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

FALSE
Explanation: Each entity type in an ER Diagram becomes a relation, not an attribute.
CL

Answer to Question 2

TRUE
Explanation: For instance, you can't have StudentID in STUDENT_CLASS unless StudentID already exists in STUDENT.
CL


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