Question 11 :
The DBMS allows surrogate keys to be changed.
Question 12 :
Cascading updates refers to child rows being automatically deleted when a parent row is deleted.
Question 13 :
When transforming an entity-relationship model into a relational database design, each entity is represented as a table.
Question 14 :
Surrogate keys have much meaning for users.
Question 15 :
When the child entity is required, we are restricted from creating a new parent row without also creating a corresponding child row at the same time.