Web development quizzes

The HAVING statement must be used along with the GROUP BY statement.
False
True

NULL is exactly the same as empty string.
False
True

Querying directly from a table takes more time than querying from a view.
False
True

This query is correct: SELECT * FROM employee WHERE EITHER age = 25 OR age = 30;
False
True

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