Thursday, 5 September 2013

P1, M1, D1
























1 comment:

  1. www.P1. A very impressive report that demonstrates your understanding of the features and functions of a database. All aspects are fully illustrated with good examples. Well done.
    M1. You have clearly explained the purpose of primary and foreign keys here, and the concept of referential integrity is described accurately.
    D1. You have covered the common errors very well, and explained the possible solutions. All aspects of the different validation rules are mentioned appropriately. Well done.

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