I need to know if I can do this in an UPDATE statement:
UPDATE users SET (\'field1\', \'field2\', \'field3\') VALUES (\'value1\', \'value2\', \'value3\'); <
No, there is no such syntax in sqlite (postgress seems to have such thing implemented) - but better use:
UPDATE users SET firstname = 'Joe', lastname = 'value2', age = 50 WHERE id=12;