Databases

Databases

1. Database use

   • A collection of data which is held together in an organised or logical way
   • Examples
     • School register
     • Police records
     • Search engines
       • Searching in queries

2. Benefits

   • Can hold a vast amount of data
   • Very fast to find specific data
   • Can easily search for queries of the data
   • Can be used to analyse the data
   • Data can be sorted to ascending or descending order on multiple criteria
   • Can easily update or ammend data
   • Records are stored safely and they are available when needed
   • Stored away with password security
   • Easy to back-up in case of data loss
   • Reduced updating errors and increased consistency

3. Data base terminology

4. Validation

   • Aims to be sensible and reasonable

Bilder und Dateien der Mindmap