What is required of a primary key? (Select all that apply)
Reveal answer
Fill a bubble to check yourself
Keep practicing — related questions
- A ___________ key value must match an existing primary key value or unique key value.
- The UNIQUE constraint requires that values must be
- Which of the following is a combination of NOT NULL and UNIQUE?
- Which is not a type of constraint
- A PRIMARY KEY must
- Which constraint can only be applied at the column level?
- What is a Primary Key?
- Which constraint can be defined only at the column level?