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Data Independence
This brings us to our next topic: data independence. It is the property of the database which tries to make sure that if we make any change in any level of schema of the database, the schema instantly above it would need minimal or no need of change.
explain three types of internet risks to the consummers whent he business system is data dependent. how can we minimise these risks
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What is an ERD?
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Type of views : Simple views and Difficult Views Feature Simple Views Complex Views Number of tables One
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