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Exam ACD100 topic 1 question 80 discussion

Actual exam question from Appian's ACD100
Question #: 80
Topic #: 1
[All ACD100 Questions]

Which two statements are true about the Primary Key constraint in SQL? (Choose two.)

  • A. A Primary Key must contain UNIQUE values.
  • B. A Primary Key uniquely identifies each record in a SQL database table.
  • C. A Primary Key must be mode of a single column only.
  • D. A Primary Key must be on integer.
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Suggested Answer: BC 🗳️
by nks at March 21, 2023, 6:08 p.m.

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Vinay1178
Highly Voted 8 months, 4 weeks ago
correct answer is AB
upvoted 5 times
...
nks
Highly Voted 9 months ago
Should A and B
upvoted 5 times
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Djoml1to
Most Recent 4 months ago
Correct:AB "The PRIMARY KEY constraint uniquely identifies each record in a table. Primary keys must contain UNIQUE values, and cannot contain NULL values. A table can have only ONE primary key; and in the table, this primary key can consist of single or multiple columns (fields)." https://www.w3schools.com/sql/sql_primarykey.ASP#:~:text=Primary%20keys%20must%20contain%20UNIQUE,or%20multiple%20columns%20(fields).
upvoted 1 times
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nyxxx
7 months, 4 weeks ago
Selected Answer: AB
C is not a true statement. A primary key can be made up of one or more columns in a table. Therefore answer is A and B
upvoted 1 times
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reika1914
8 months ago
Selected Answer: AB
Correct Answer: AB
upvoted 1 times
...
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