Monday, 24 June 2013

p1 m1 d1















4 comments:

  1. www: great start to the task well done.

    ebi: For P1 You have to include:
    Examples of the main features of a database (Tables, Fields and Records).
    Descriptions of data types.
    Paper records versus electronic databases.
    Ensure you backup your findings with real examples and illustrate your points with images/screenshots.

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  2. www. M1. A excellent piece of work. You have clearly explained the purpose of primary and foreign keys here, and the concept of referential integrity is described accurately.The illustrations are very useful too. Well done.

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  3. Your P1 also now fulfills the criteria now that you have made the changes

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  4. ebi. You showed screenshots. it's difficult to visualise these things from words alone.You also need to explain how validation helps to avoid errors.

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