Foreach smyčka MySQL

Z toho, co mohu shromáždit, by mělo stačit následující, pokud jsou pole tím, co jste poskytli.

INSERT INTO Address (email)
  SELECT User.email
    FROM User JOIN person ON User.id_person = person.id
   WHERE person.id_address IS NULL
;

UPRAVIT (pomocí kurzoru)

S kurzorem by to mělo být docela jednoduché, ale vřele vám doporučuji, abyste se s těmito a jejich důsledky seznámili.

DROP PROCEDURE IF EXISTS _tmp_update_address;
DELIMITER $$
CREATE PROCEDURE _tmp_update_address()
BEGIN
   DECLARE cursor_List_isdone BOOLEAN DEFAULT FALSE;
   DECLARE cur_userId, cur_personId INT;
   DECLARE cur_email VARCHAR(250) DEFAULT '';

   DECLARE cursor_List CURSOR FOR 
      SELECT User.id, person.id_address, User.email
      FROM User JOIN person ON User.id_person = person.id
      WHERE person.id_address IS NULL
    ;

   DECLARE CONTINUE HANDLER FOR NOT FOUND SET cursor_List_isdone = TRUE;

   OPEN cursor_List;

   loop_List: LOOP
      FETCH cursor_List INTO cur_userId, cur_personId, cur_email;
      IF cursor_List_isdone THEN
         LEAVE loop_List;
      END IF;

      INSERT INTO Address (email) VALUES (cur_email);
      UPDATE person SET person.id_address = LAST_INSERT_ID()
         WHERE person.id = cur_personId;

   END LOOP loop_List;

   CLOSE cursor_List;
END

$$

DELIMITER ;

CALL _tmp_update_address();