Database Mind Map
- Created by: Matt Curtis
- Created on: 05-03-13 11:07
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- Databases
- Flat-File
- Adv. All data is held in one place
- Adv. Easy to set up so no extra knowledge needed
- Adv. Used for simple data
- Disadv. Can become messy if too much data is entered
- Disadv. Data duplication can occur as data has to be changed in multiple places rather than just in one place like a relational database
- Disadv. Multiple items of data may not be seen on the screen
- A flat file database is a simple database with only one table
- Rleational
- A database linking two or more tavble using relationships
- Relationships could be 1 to 1, 1 to many or many to many
- Rleational
- A database linking two or more tavble using relationships
- Relationships could be 1 to 1, 1 to many or many to many
- Relationships could be 1 to 1, 1 to many or many to many
- Disadv. Needs quite a lot of knowledge to set up
- Disadv. Data stored in a number of places not just one
- Adv. Data only has to be changed in one place and it will then be changed in all other places at the same time
- Adv. Alsorts of tables can be linked using relationships meaning all data can be linked
- A database linking two or more tavble using relationships
- Rleational
- Relationships could be 1 to 1, 1 to many or many to many
- Disadv. Needs quite a lot of knowledge to set up
- Disadv. Data stored in a number of places not just one
- Adv. Data only has to be changed in one place and it will then be changed in all other places at the same time
- Adv. Alsorts of tables can be linked using relationships meaning all data can be linked
- A database linking two or more tavble using relationships
- A database is a large collection of organised data presented in a useful format
- Flat-File
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