Monday, 20 February 2012

Advantages and Disadvantages of Databases

Advantages


  • Reduced data redundancy ;Sometimes Data redundancy refers to in computer data storage, is a property of some disk which provides fault tolerance, so that all or part of the data stored in the array can be recovered in the case of disk failure.


  • The cost typically associated with providing this feature is a reduction of disk capacity available to the user, since the implementations require either a duplication of the entire data set, or an error-correcting code to be stored on the array.


  • Improved data security; This is data about living, identified or identifiable individuals and includes information such as names and addresses, bank details, and opinions expressed about an individual.


    • Disadvantages
      Database systems are complex, difficult, and time-consuming to design • Substantial hardware and software start-up costs

    • Damage to database affects virtually all applications programs

    • Extensive conversion costs in moving form a file-based system to a database system

    • Initial training required for all programmers and users

    By Bismark!

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