Mapa mental
Database
Mind map: Database
Conteúdo do mapa
Database
File
- Organise Records
Record
- Group of Fields
Fields
- Text
- Numbers
- Calculated
- Date/Time
- Graphic
Flat
- 1 table
Relational
- Linked tables
- Keys
- Primary
- Unique
- Must have
- Foreign
- links tables relationships
- Primary
- Avoid Data Duplication
Search
- Complex
- >1 field
- Simple
- Complex
Sort
- Complex
- >1 field
- Complex
Validation
- Presence Check
- field not blank
- Restricted Check
- dropdown box
- Field length
- size of field
- Field Range
- range of numbers
- Presence Check
Informações
- Descrição
- Key Words used in Databse theory
- Criado por
- James Louden
- Visualizações
- 44
- Tags
- Avaliação