Quizzes de desarrollo web

A NOT NULL constraint can accept NULL values.
False
True

We use the DIFFERENT keyword to retrieve different values, for example: SELECT DIFFERENT column_name FROM table_name;
False
True

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

This query retrieves the first 3 rows: SELECT * FROM employee LIMIT 3;
False
True

NOW() Returns the current date and time.
False
True