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Exam 1z0-071 topic 1 question 168 discussion

Actual exam question from Oracle's 1z0-071
Question #: 168
Topic #: 1
[All 1z0-071 Questions]

Which two are true about constraints? (Choose two.)

  • A. A column with a FOREIGN KEY constraint can never contain a NULL value.
  • B. A constraint can be disabled even if the constrained column contains data.
  • C. Constraints are enforced only during INSERT operations.
  • D. All constraints can be defined at the table or column level.
  • E. A column with a UNIQUE constraint can contain a NULL value.
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by jfc1 at Feb. 16, 2023, 5:07 p.m.

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Chosen Answer:
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c1a988a
3 weeks ago
Selected Answer: B
B and E by chatgpt
upvoted 1 times
...
ShahedOdeh
7 months, 1 week ago
B and E
upvoted 1 times
...
c1a0049
7 months, 4 weeks ago
Selected Answer: B
Should be B,E but won't allow multiple answers to be voted for.
upvoted 1 times
...
ArslanAltaf
12 months ago
BE is correct
upvoted 1 times
...
yaya32
1 year, 3 months ago
Selected Answer: B
BE is correct
upvoted 2 times
...
Arth1989
1 year, 3 months ago
BE 100%. Why so many answers are incorrectly marked?
upvoted 1 times
...
WingL
1 year, 9 months ago
Selected Answer: B
B AND E CORRECT
upvoted 1 times
...
Rik92
2 years ago
Selected Answer: B
BE is correct
upvoted 1 times
...
Orakol
2 years, 2 months ago
BE is correct. A is false, a Foreign Key column can contain Null values.
upvoted 1 times
...
kesammy9
2 years, 2 months ago
Selected Answer: B
BE is the correct answer.
upvoted 2 times
...
jfc1
2 years, 2 months ago
Selected Answer: E
AE is good
upvoted 1 times
...
Community vote distribution
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C (25%)
B (20%)
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