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Exam C2090-616 All Questions

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Exam C2090-616 topic 1 question 7 discussion

Actual exam question from IBM's C2090-616
Question #: 7
Topic #: 1
[All C2090-616 Questions]

Which constraint can be used to ensure that identical values are never stored in a set of columns in a table?

  • A. NOT NULL
  • B. Foreign key
  • C. Primary key
  • D. Informational constraint
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Suggested Answer: C 🗳️
Reference: https://www.ibm.com/developerworks/data/library/techarticle/dm-0401melnyk/index.html
by pieknyjoe at June 21, 2020, 10:09 p.m.

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pieknyjoe
4 years, 5 months ago
C is good : C. Primary key
upvoted 2 times
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