when a 1NF table has no composite candidate keys is it in 2NF?

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伪装坚强ぢ
伪装坚强ぢ 2020-12-11 09:47

Is it safe to say, when a 1NF table has no composite candidate keys (primary keys consisting of more than one column), the table is automatically in 2NF?

Can a table

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  •  离开以前
    2020-12-11 10:03

    The key to having a individual table in 2NF is to "Remove subsets of data that apply to multiple rows of a table and place them in separate tables."

    If a table has multiple rows that repeat information, then that information should be moved to another table and a relationship established though the use of foreign keys.

    http://databases.about.com/od/specificproducts/a/2nf.htm

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