Какое SQL-выражение является корректным? insert into A (id, code) (select id,"X" from B where name='XXX');, insert into A (id, code) (select id,'X' from B where name='XXX');, insert into A (id, code) values (select id,"X" from B where name='XXX');, insert into A (id, code) values (select id,'X' from B where name='XXX');