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Quote: if nulls aren't values, then relations with null values aren't relations and the relational model is lost
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Topic:
undefined, null, and other signal values
Topic:
database schema
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Once you understand that nulls aren't values, you're … [by definition] … So you've abandoned the relational model, and all … Google-1 Google-2
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Topic: undefined, null, and other signal values (33 items)
Topic: database schema (29 items)