Quizzes de desarrollo web

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

This statement adds a column: ALTER TABLE employee DROP COLUMN age.
False
True

MySQL is written in Java.
False
True

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

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