Mapa mental
Chapter 5 - DataBase
Contenido del mapa
Chapter 5 - DataBase
Data Model
Apreaches of data Modeling
- ERD
- SOD
- RT
- Inside out
ER Model
- Peter Chen (1976) not a standard
Patterns
Entity vs Entity Class vs Entity Instance
- Entity = Entity Class
- class = collection of objectcs which user car identify and track
- ex: Student
- Entity:
- Attribute
- Something that describes the entity
- something to have a diff value. Like hair color
- Something that describes the entity
Información
- Descripción
- Mapa Mental sobre Chapter 5 - DataBase, creado por Stanley Morales el 04/02/2020.
- Creado por
- Stanley Morales · feb 2020
- Actualizado
- 14 may 2020
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- 0
- Valoración
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