Złączenia tabeli samej do siebie i można zbudować zapytanie, które wyświetli odpowiednie dane. Przykład:
SELECT t1.submission_data_value AS 'imie', t2.submission_data_value AS 'nazwisko', t3.submission_data_value AS 'miasto', t4.submission_data_value AS 'email'
FROM test3 t1
LEFT OUTER JOIN test3 t2 ON t2.submission_id = t1.submission_id AND t2.field_id = 2
LEFT OUTER JOIN test3 t3 ON t3.submission_id = t1.submission_id AND t3.field_id = 3
LEFT OUTER JOIN test3 t4 ON t4.submission_id = t1.submission_id AND t4.field_id = 4
WHERE t1.field_id = 1