Web development quizzes

UNIQUE and NOT NULL are contraints.
False
True

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

A VARCHAR can store up to 512 characters.
False
True

This query copies data from table2 to table1: INSERT INTO table2 SELECT * FROM table1;
False
True

A SELECT statement is a data definition language (DDL).
False
True