Unterschiede
Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
| Beide Seiten der vorigen Revision Vorhergehende Überarbeitung Nächste Überarbeitung | Vorhergehende Überarbeitung | ||
| modul:m290:learningunits:lu03:loesungen:l04 [2024/09/12 16:28] – vdemir | modul:m290:learningunits:lu03:loesungen:l04 [2024/10/02 15:13] (aktuell) – vdemir | ||
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| Zeile 1: | Zeile 1: | ||
| - | ====== | + | ====== |
| * The attribut must be taken over and added with data-types and constraints (primary keys) | * The attribut must be taken over and added with data-types and constraints (primary keys) | ||
| * The relations must be realized as relation tables, that connect the base tables | * The relations must be realized as relation tables, that connect the base tables | ||
| Zeile 6: | Zeile 6: | ||
| * The attribut must be taken over and added with data-types and constraints (primary keys) | * The attribut must be taken over and added with data-types and constraints (primary keys) | ||
| - | {{: | + | |
| + | {{: | ||
| ===== Case Study ===== | ===== Case Study ===== | ||
| The relation between **Countries** and **Continents** is a so called **many-to-many-relation = n: | The relation between **Countries** and **Continents** is a so called **many-to-many-relation = n: | ||
| - | {{: | + | {{: |