Databases
- Created by: Josh Genge
- Created on: 05-03-13 11:15
View mindmap
- Databases
- Flat-File
- Advantages
- Easy to set up
- All records are stored in one place
- Cheaper than a relational database
- Disavantages
- Data stored could be duplicated
- No flexibility in data storage
- Harder to search for specific information
- Contains only one table of informartion
- E.g. Itunes
- Advantages
- Relational
- Advantages
- No Data Duplication
- Data may be combined more flexibly
- Data integrity is maintained
- Much easier to search for specific information
- Disadvantages
- Hard to set up
- More expensive than flat-files
- Inappropriate for simple lists
- Data is stored in 2 or more tables with links between them
- Relationships can be one-to-one, one-to-many, many-to-many
- E.g. A database about tools, customers and rentals
- Advantages
- A database is a large collection of organised data
- Flat-File
Similar ICT resources:
Teacher recommended
Comments
No comments have yet been made