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3NF vs BCNF
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A store has a single phone number.
Location Phone Item Price Description Super Vancouver 123 Apple 0.5 Wow expensive Victoria 0.8 Can't afford Save 456 0.2 Buy! Value Burnaby 789 Orange Average price 1.8 Expensive CK1 CK2 Suppose: A store has a single phone number. Description is based on Item and Price.
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A store has a single phone number.
Location Phone Item Price Super Vancouver 123 Apple 0.5 Victoria 0.8 Save 456 0.2 Value Burnaby 789 Orange 1.8 Item Price Description Apple 0.5 Wow expensive 0.8 Can't afford 0.2 Buy! Orange Average price 1.8 Expensive CK1 CK2 Suppose: A store has a single phone number. Description is based on Item and Price.
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A store has a single phone number.
Location Item Price Super Vancouver Apple 0.5 Victoria 0.8 Save 0.2 Value Burnaby Orange 1.8 Item Price Description Apple 0.5 Wow expensive 0.8 Can't afford 0.2 Buy! Orange Average price 1.8 Expensive Phone Store 123 Super 456 Save 789 Value Suppose: A store has a single phone number. Description is based on Item and Price.
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