The UNIQUE constraint requires that values must be
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Keep practicing — related questions
- The constraint used to avoid keying in repeated values into a column must be declared_____________.
- A ___________ key value must match an existing primary key value or unique key value.
- Which constraint can be defined only at the column level?
- Which constraint can be defined only at the column level?
- Which constraint can only be applied at the column level?
- Which constraint can be defined only at column level?
- What is a Primary Key?
- Which is not a type of constraint