Question
How is H related to
D? Answer the questions based on the information given below. Seven persons D, E, F, G, H, I and J are in a family of three generations. No single person in the family is a parent. H is the grandson of F, who is the mother of I. I is unmarried male. G is the sister-in-law of I. D is the brother-in-law of E, who is the maternal aunt of J.Solution

Which SQL constraint ensures a column cannot have NULL values?
What is the main function of a PL/SQL `TRIGGER`?
Which SQL function returns the largest value in a column?
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Which of the following is a common use case for a PL/SQL trigger?
Which SQL command is used to modify existing records in a table?
Materialized views differ from normal views because:
Which SQL constraint ensures that a column’s values are unique across the table?
A `BEFORE INSERT` trigger fires:
Which SQL function is used to calculate the average of a numeric column?