In database normalization, unnormalized form (UNF), also known as an unnormalized relation or non first normal form (N1NF or NF2), is a database data model (organization of data in a database) which does not meet any of the conditions of database normalization defined by the relational model. Database systems which support unnormalized data are sometimes called non-relational or NoSQL databases. In the relational model, unnormalized relations can be considered the starting point for a process of normalization.It should not be confused with denormalization, where normalization is deliberately compromised for selected tables in a relational database.
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