Computing. Programming. Web development. Graphic design. Networking.

Web development quizzes

Clock
Minutes
Seconds
LEFT JOIN returns all rows when there is at least one match in BOTH tables

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

A DROP statement is a data definition language (DDL).

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

A NOT NULL constraint can accept NULL values.