Physical Database Design
A secondary key is which of the following?

Determines the tablespace required
Nonunique key
Useful for denormalization decisions
Primary key

ANSWER DOWNLOAD EXAMIANS APP

Physical Database Design
Which of the following are integrity controls that a DBMS may support?

Assume a default value in a field unless a user enters a value for that field.
Limit the set of permissible values that a field may assume.
All of these
Limit the use of null values in some fields.

ANSWER DOWNLOAD EXAMIANS APP