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May 25th, 2015
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MySQL 0.33 KB | None | 0 0
  1. UPDATE Materie_Prime
  2. SET Materie_Prime.qnt = Materie_Prime.qnt +(
  3.     SELECT (Necessita.qnt * Riceve.qnt)
  4.     FROM Ordine_C, Riceve, Necessita
  5.     WHERE Riceve.codice_ord_c = OLD.codice_ord_c
  6.     AND Riceve.codice_art = Necessita.codice_art
  7.     AND Necessita.codice_mat = Materie_Prime.codice
  8.     GROUP BY Materie_Prime.codice)
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