5. The SQL data type used for automatically generating row ID's is

A. Numeric

B. Char

C. Integer

D. VarChar

6. How is a one-to-many relationship implemented in the a database schema?

A. The key of the many class becomes a foreign key in the one class.

B. The key of the one class becomes a foreign key in the many class.

C. Another table is made which contains the keys from both classes.

D. The keys of each class become foreign keys in the other class.

7. If the primary key is a single column it is defined

A. only as part of the column definition, but nullable

B. as part of the column definition, or after all column definitions

C. only after all column definitions

D. only as part of the column definition, but not nullable

8. A DateTime field can be

A. a date or a date and time

B. a date or a time

C. only a date and time

D. a date, a time, or a date and time