Unterschiede
Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
| Beide Seiten der vorigen Revision Vorhergehende Überarbeitung Nächste Überarbeitung | Vorhergehende Überarbeitung | ||
| modul:m290:learningunits:lu03:theorie:d_crowfeet [2024/08/16 11:06] – vdemir | modul:m290:learningunits:lu03:theorie:d_crowfeet [2024/10/02 15:14] (aktuell) – vdemir | ||
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| Zeile 1: | Zeile 1: | ||
| - | ====== | + | ====== |
| ==== The Basics of Crow’s Foot Notation ==== | ==== The Basics of Crow’s Foot Notation ==== | ||
| Zeile 20: | Zeile 20: | ||
| {{: | {{: | ||
| - | [[https:// | + | [[https:// |
| ==== Why Use Crow’s Foot Notation? ==== | ==== Why Use Crow’s Foot Notation? ==== | ||
| Zeile 29: | Zeile 29: | ||
| Consider a simple ERD for an online bookstore. The entities might include **Customers**, | Consider a simple ERD for an online bookstore. The entities might include **Customers**, | ||
| - | - **Customers** can place multiple **Orders** (One-to-Many). | + | * **Customers** can place multiple **Orders** (One-to-Many). |
| - | - Each **Order** can include multiple **Books** (Many-to-Many). | + | |
| Using Crow’s Foot notation: | Using Crow’s Foot notation: | ||
| - | - The relationship between **Customers** and **Orders** would have a single line connecting the entities with a vertical line on the **Customers** side and a crow’s foot on the **Orders** side. | + | * The relationship between **Customers** and **Orders** would have a single line connecting the entities with a vertical line on the **Customers** side and a crow’s foot on the **Orders** side. |
| - | - The relationship between **Orders** and **Books** would have crow’s feet on both sides, representing the many-to-many relationship. | + | |
| ==== Vocabulary ==== | ==== Vocabulary ==== | ||
| ^English ^ Deutsch ^ | ^English ^ Deutsch ^ | ||
| - | | | + | | to convey | vermitteln, mitteilen |
| - | + | | to refere to | Bezug nehmen auf | | |
| - | + | | instance | Beispiel | | |
| - | + | | nature | Wesen, Beschaffenheit | | |
| - | + | | to indicate | andeuten, zeigen | | |
| + | | might | möglicherweise | | ||
| + | | to denote | bedeuten, hindeuten | | ||
| + | | to depict | darstellen | | ||
| + | | to imply | implizieren | | ||
| + | | to enroll | einschreiben, | ||
| + | | to consider | in Betracht ziehen, bedenken | | ||
| ---- | ---- | ||
| [[https:// | [[https:// | ||