it is possible to add a null or not null constraint to a table already loaded with data
Answers
Answered by
8
Answer:
yes
Explanation:
It is possible to add a NOT NULL constraint to an existing table by using the ALTER TABLE statement.
1
ALTER TABLE table_name MODIFY ( column_name NOT NULL);
Note: same query will be work for null constraint
Answered by
2
Answer:Yes
Explanation:
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