A NOT NULL Constraint Can Only Be Added to an Existing

question 104

True/False

A NOT NULL constraint can only be added to an existing table by using the ADD clause with the ALTER TABLE command._________________________​

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Definitions:

Sperm

Male reproductive cells or gametes in sexually reproducing organisms, involved in fertilizing the ovum to initiate pregnancy.

Chromosomes

Thread-like structures located inside the nucleus of animal and plant cells, made of protein and a single molecule of deoxyribonucleic acid (DNA), responsible for carrying genetic information.

Genes

The basic units of heredity in living organisms, made up of DNA, that carry instructions for the development, functioning, growth, and reproduction of all known living organisms.

Homozygous

A genetic condition where an individual has two identical alleles for a particular gene or trait.