1.

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
D. No two rows in a table may be identical
Answer» D. No two rows in a table may be identical


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