Quizzes de desarrollo web

This query is correct: UPDATE table_name SET column1=value1;
False
True

AVG() returns the average of a numeric column.
False
True

MySQL is (as of March 2014) the world's second most widely used open-source RDBMS.
False
True

A NOT NULL constraint can accept NULL values.
False
True

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