First normal form is an essential property of a relation in a relational database.
2.
He is fond of transforming himself into a larger and stronger form after his first normal form is defeated.
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First normal form, as defined by Chris Date, permits relation-valued attributes ( tables within tables ).
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:: I know we're not supposed to, but why is the printers table not even meeting first normal form.
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A table that is in first normal form ( 1NF ) must meet additional criteria if it is to qualify for second normal form.
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This representation of telephone numbers is not in first normal form : our columns contain non-atomic values, and they contain more than one of them.
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Edgar F . Codd, the inventor of the relational model ( RM ), introduced the concept of normalization and what we now know as the First normal form ( 1NF ) in 1970.
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To bring the model into the first normal form, we split the strings we used to hold our telephone number information into " atomic " ( i . e . indivisible ) entities : single phone numbers.
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