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Question 45/100
You try to add a foreign key to the InnoDB table employees:
Mysq1> ALTER TABLE employees ADD FOREIGN KEY (Department_ID) REFERENCES departments (Department_ID);
ERROR 1215 (HY000): cannot add foreign key constraint
Which command will provide additional information about the error?
Mysq1> ALTER TABLE employees ADD FOREIGN KEY (Department_ID) REFERENCES departments (Department_ID);
ERROR 1215 (HY000): cannot add foreign key constraint
Which command will provide additional information about the error?
Correct Answer: A
Explanation/Reference:
Reference: http://zeering.com/LoadAnswers.aspx?q=Foreign%20Key%20constraint (see update)
Reference: http://zeering.com/LoadAnswers.aspx?q=Foreign%20Key%20constraint (see update)
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