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Alles bis auf 11 2 b) und c)

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Robert
2023-11-24 20:18:37 +01:00
parent d2f6e02b4b
commit a76e8b397a
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M3/M3.md
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@@ -89,30 +89,23 @@ ORDER BY anzahl ASC;
# Aufgabe 7
elter_kategorie:
``` sql
FOREIGN KEY (id) REFERENCES kategorie(id),
CONSTRAINT FOREIGN KEY (id) REFERENCES kategorie(id),
```
gericht_hat_allergen:
``` sql
code char(4),
FOREIGN KEY (code) REFERENCES allergen(code),
CONSTRAINT FOREIGN KEY (code) REFERENCES allergen(code),
gericht_id int8 not null,
FOREIGN KEY (gericht_id) REFERENCES gericht(id)
CONSTRAINT FOREIGN KEY (gericht_id) REFERENCES gericht(id)
```
gericht_hat_kategorie:
``` sql
gericht_id int8 not null,
FOREIGN KEY (gericht_id) REFERENCES gericht(id),
CONSTRAINT FOREIGN KEY (gericht_id) REFERENCES gericht(id),
kategorie_id int8 not null,
FOREIGN KEY (kategorie_id) REFERENCES kategorie(id)
CONSTRAINT FOREIGN KEY (kategorie_id) REFERENCES kategorie(id)
```
# Aufgabe 11
## Relationenmodell
Kontakte(\_KontaktId\_,Vorname, Nachname, Email, Telefonnummer, Anrede, Typ, )
Kunde(\_KontaktId\_)
Lieferant(\_KontaktId\_,Wochentag_fuer_Lieferzeitraum)
```