ExamTopics Logo
Mail Us[email protected]
Menu
Oracle Discussions
exam questions

Exam 1z0-071 All Questions

View all questions & answers for the 1z0-071 exam
Go to Exam

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.

Comments

Chosen Answer:
This is a voting comment (?). It is better to Upvote an existing comment if you don't have anything to add.
Switch to a voting comment New
Submit Cancel
ShahedOdeh
3 months, 4 weeks ago
B and E
upvoted 1 times
...
c1a0049
4 months, 1 week ago
Selected Answer: B
Should be B,E but won't allow multiple answers to be voted for.
upvoted 1 times
...
ArslanAltaf
8 months, 2 weeks ago
BE is correct
upvoted 1 times
...
yaya32
12 months ago
Selected Answer: B
BE is correct
upvoted 2 times
...
Arth1989
1 year ago
BE 100%. Why so many answers are incorrectly marked?
upvoted 1 times
...
WingL
1 year, 6 months ago
Selected Answer: B
B AND E CORRECT
upvoted 1 times
...
Rik92
1 year, 9 months ago
Selected Answer: B
BE is correct
upvoted 1 times
...
Orakol
1 year, 10 months ago
BE is correct. A is false, a Foreign Key column can contain Null values.
upvoted 1 times
...
kesammy9
1 year, 10 months ago
Selected Answer: B
BE is the correct answer.
upvoted 2 times
...
jfc1
1 year, 11 months ago
Selected Answer: E
AE is good
upvoted 1 times
...
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.

Upvoting a comment with a selected answer will also increase the vote count towards that answer by one. So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.

SaveCancel
exam
Someone Bought Contributor Access for:
SY0-701
London, 1 minute ago