Web development quizzes

This query is correct: SELECT column1 FROM table1 UNION SELECT column2 FROM table2;
False
True

LEFT JOIN returns all rows when there is at least one match in BOTH tables
False
True

A foreign key declaration can include this: ON UPDATE CASCADE.
False
True

This query is correct: SELECT * FROM employee WHERE age BETWEEN 20 AND 25;
False
True

This query is correct: SELECT * FROM employee ORDER BY age DESC;
False
True