Unterschiede
Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
Nächste Überarbeitung | Vorhergehende Überarbeitung | ||
modul:m290:learningunits:lu03:aufgaben:a04 [2024/09/05 09:39] – angelegt vdemir | modul:m290:learningunits:lu03:aufgaben:a04 [2024/10/02 15:13] (aktuell) – vdemir | ||
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- | ====== | + | ====== |
After developing our conceptional data model, the next step to establish a physical data base is shape a ERD, the Entity Relationship Diagram. | After developing our conceptional data model, the next step to establish a physical data base is shape a ERD, the Entity Relationship Diagram. | ||
Zeile 13: | Zeile 13: | ||
Below figure of a conceptual data-model illustrates | Below figure of a conceptual data-model illustrates | ||
- | {{: | + | {{: |
==== Task ==== | ==== Task ==== | ||
Zeile 19: | Zeile 19: | ||
- develop the logical datamodel (tables, attributes, data types, fk/pk) by using the Crow's Foot Notation | - develop the logical datamodel (tables, attributes, data types, fk/pk) by using the Crow's Foot Notation | ||
- | - realize the realation | + | - realize the relation |
- finalize the ERM by adding the cardinalities (1:1, 1:many, ...) | - finalize the ERM by adding the cardinalities (1:1, 1:many, ...) | ||
+ | - | ||
===== Solution ===== | ===== Solution ===== | ||
+ | |||
[[modul: | [[modul: | ||
Zeile 31: | Zeile 33: | ||
| prerequisite | Grundvoraussetzung | | | prerequisite | Grundvoraussetzung | | ||
| given | gegebene, vorausgesetzt | | | given | gegebene, vorausgesetzt | | ||
+ | | mandatory | zwingend | | ||
---- | ---- | ||
[[https:// | [[https:// |