Quizzes de desarrollo web

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

This query is correct: SELECT * FROM employee WHERE age = 25;
False
True

The DEFAULT constraint inserts a default value into a column.
False
True

A NOT NULL constraint can accept NULL values.
False
True

We can define aliases like this: SELECT age ALIAS myage FROM employee;
False
True