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Jun 14th, 2014
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  1. SELECT COUNT(*)
  2. FROM produkty p
  3. JOIN klienci k ON (k.id_klienta = p.id_klienta)
  4. JOIN oceny o ON (o.id_produktu = p.id_produktu)
  5. JOIN ankiety a ON (a.id_ankiety = o.id_ankiety)
  6. WHERE k.imie = 'JAN'
  7.   AND k.nazwisko = 'NOWAK'
  8.   AND a.imie_ankietujacego = 'ADAM'
  9.   AND a.nazwisko_ankietujacego = 'NOWAK'
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