Mapa mental
Databases
Contenido del mapa
Databases
Flat file
- Single table
- Harder to update
- Potential data duplication
- Mistakes are made easier as you have to update all instances of a piece of data
Relational
- Data is more consistant
- Stored in several tables
- Linked with relationships
- One to one
- One to many
- Many to one
- Linked with relationships
- No data duplication
- Only need to update data once
A large collection of organised data
Información
- Descripción
- Mapa Mental sobre Databases, creado por goldj059.3031242 el 29/09/2013.
- Creado por
- goldj059.3031242
- Visitas
- 18
- Valoración