INSERT INTO [ ONLY ] <class name> [ ( [ <attribute name comma list> ] ) ]
| <insert statement value clause>
VALUES ( <insert value comma list> )
| <query statement>
| DEFAULT [ VALUES ]
<insert value> [ { , <insert value> }... ]
<expression>
| <query specification>
INSERT INTO person(name, age, residence)
VALUES ('Amy', 20, (INSERT INTO address(street, city)
VALUES ('1 Wolf St. ', 'Austin')));