types of databases

types of databases

1. local and networked

   • local
     • why are they used?
       • local databases are only used by one person
   • why they are used?
     • they are used because anyone can use it at any time and it has different databases to store data about the customer or product
   • examples
     • local examples are finance databases
   • networked
     • why they are used?
       • they are used by everyone and they can store data such as product number ect
     • examples
       • computers are networked and job databases to get data about customers

2. online

   • why they are used?
   • examples

3. flat and relational

   • why they are used?
     • they are used to separate data
   • examples
     • used by big companys such as Tesco, asda
   • flat
     • why are they used?
       • they are used for only one table of data which is a flat database
     • examples
       • uses more data and memory
   • relational

4. ·

   • online databases
     • why are they used
     • examples