A unique, DBMS-supplied identifier used as the primary key of a relation is called a(n): Options: A . &nbspcomposite key. B . &nbspprimary key. C . &nbspsurrogate key. D . &nbspforeign key.

A unique, DBMS-supplied identifier used as the primary key of a relation is call

Question

A unique, DBMS-supplied identifier used as the primary key of a relation is called a(n):

Options:

A . composite key.

B . primary key.

C . surrogate key.

D . foreign key.

Answer: Option C

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Question 1. For every relationship, how many possible types of actions are there when enforcing minimum cardinalities?....

Question 2. Which of the following data constraints would be used to specify that the value of a cell in one column must be less tha....another column in the same row of the same table?

Question 3. Which constraint requires that the binary relationship indicate all combinations that must appear in the ternary relatio....indicate all combinations that must appear in the ternary relationship?

Question 4. Which of the following column properties would be used to specify that cells in a column must contain a monetary value t....is less than another monetary value in the same row?

Question 5. If a relationship has a cascade updates constraint, then if ________ in the parent table is changed, then the same chang....will automatically be made to any corresponding foreign key value.

Question 6. For every relationship, how many possible sets of minimum cardinalities are there?....

Question 7. Each entity is represented as a(n):....

Question 8. The terms alternate key and candidate key mean the same thing.....

Question 9. When the parent entity is required, cascading updates and cascading deletions should be allowed or the associated action....or the associated actions on the parent should be prohibited.

Question 10. A foreign key is used to implement relationships between tables.....

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