Any type of constraint for a single column can be created at the column level._________________________
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Q19: Constraints are used to ensure the accuracy
Q20: A UNIQUE constraint is the same as
Q21: The default name for a constraint is
Q22: When dropping a constraint,the user is always
Q23: A constraint can be added to a
Q25: A Datatype is a rule used to
Q26: If a data value violates a(n)constraint,the entire
Q27: A(n)FOREIGN KEY constraint is used to ensure
Q28: In the USER_CONSTRAINTS view,the constraint type for
Q29: The ALTER TABLE command can be used
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