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

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

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.
Limit the use of null values in some fields.
All of these

ANSWER DOWNLOAD EXAMIANS APP