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Define Partial Key and Primary Key
A partial key, also known as discriminator, is the set of attributes which can uniquely identify weak entities that are related to similar owner entity. Primary key is a unique key but not comprise null values. An entity set can comprise at most one primary key.
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#question.explain diversity and magnitude of organic compounds and general properties?
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Define Fifth Normal form is concerned with Ans : Fifth Normal form is concerned with Join dependency.
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