Quizzes de desarrollo web

The UPDATE statement is a data manipulation language (DML).
False
True

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

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

There are different versions of the SQL language.
False
True

A NOT NULL constraint can accept NULL values.
False
True