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Jan 17th, 2019
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MySQL 0.44 KB | None | 0 0
  1. DROP TRIGGER IF EXISTS dispatchTrigger;
  2. CREATE TRIGGER IF NOT EXISTS dispatchTrigger
  3. AFTER INSERT ON bestellungenthaltenmahlzeiten
  4. FOR EACH ROW
  5. UPDATE mahlzeiten
  6. SET Vorrat = Vorrat - NEW.Anzahl
  7. WHERE ID = NEW.MahlzeitID;
  8.  
  9. DROP TRIGGER IF EXISTS verfügbarTrigger;
  10. CREATE TRIGGER IF NOT EXISTS verfügbarTrigger
  11. AFTER INSERT ON bestellungenthaltenmahlzeiten
  12. FOR EACH ROW
  13. UPDATE mahlzeiten
  14. SET Verfügbar = 0
  15. WHERE Vorrat = 0;
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