Q12
Which of the following is not a restriction for a table to be a relation?
A.
The cells of the table must contain a single value.
B.
All of the entries in any column must be of the same kind.
C.
The columns must be ordered.
AnswerD.
No two rows in a table may be identical.
Answer: Option C
Solution
Answer: Option C
Solution:
The correct answer is Option3: The columns must be ordered. In the relational model, the order of columns does not matter for a table to be considered a relation. The other options are indeed restrictions for a table to be a relation.