The following question is taken from DB2 9 Fundamentals Certification Study Guide, by Roger E. Sanders (copyright...
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2007) and is reprinted here with permission from MC Press.
Test your knowledge of DB2 9 by answering the question below, which is from a real, previous DB2 9 Fundamentals exam (exam 730). When you are finished, check your answer and read an explanation using the answer key.
IBM DB2 9 Fundamentals certification exam study guide
Which type of key is defined on the child table to implement a referential constraint?
A. Unique key
B. Primary key
C. Foreign key
D. Composite key
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