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In a unique referential constraint, which type of key does a foreign key reference?
In a unique referential constraint, which type of key does a foreign key reference?
A . Child key
B . Collation key
C . Parent key
D . Secondary key
Answer: C
Explanation:
Reference: https://www.ibm.com/support/knowledgecenter/en/SSEPGG_11.1.0/ com.ibm.db2.luw.admin.dbobj.doc/doc/c0020166.html
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