First normal form - Wikipedia, the free encyclopedia
First normal form ( 1NF or Minimal Form ) is a normal form used in database normalization. A relational database table that adheres to 1NF is one that meets a certain minimum set of criteria. These...
en.wikipedia.org/wiki/First_normal_form
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A table is in first normal form (1NF) if there are no repeating groups. ... The sample tables below do not comply with first normal form. Look for fields that contain too much data and repeating group of fields.
www.databasedev.co.uk/1norm_form.html www.databasedev.co.uk/1norm_form.html
A Guide To First Normal Form (1NF) - Database Solutions for Microsoft Access: The goal of normal forms is to remove redundant data from relational tables by splitting the tables into smaller tables without losing any of the data. ... A relational table is in First Normal Form (1NF) if:
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Second normal form - Wikipedia, the free encyclopedia
Second normal form ( 2NF ) is a normal form used in database normalization. 2NF was originally defined by E.F. Codd in 1971. A table that is in first normal form (1NF) must meet additional criteria...
en.wikipedia.org/wiki/Second_normal_form
In this article, we begin our look at the first of three major normal forms -- first normal form (otherwise known as 1NF). ... First Normal Form (1NF) sets the very basic rules for an organized database:
databases.about.com/od/specificproducts/a/firstnormalfo... databases.about.com/od/specificproducts/a/firstnormalform.htm
When discussing the normalisation process, it is always the First Normal Form that causes the most grief and confusion. Anith Sen takes up the challenge to explain, in simple terms, exactly what the First Normal Form really is, and why it is so important for Database Design.
www.simple-talk.com/sql/learn-sql-server/facts-and-fall... www.simple-talk.com/sql/learn-sql-server/facts-and-fallacies-about-first-normal-form/
WHAT FIRST NORMAL FORM REALLY MEANS AND MEANS NOT ... As a concept, first normal form (1NF) is absolutely fundamental in the database field, and yet it isn't at all well understood by the IT community at large (at least if the available literature is anything to go by).
www.dbdebunk.com/page/page/629796.htm
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First normal form has two very distinct rules: ... The first form of breaking 1NF is the creation of another column in a table, which really just duplicates a relationship to a primary key. For this example, let's assume that a distributor wants to keep a relationship for all of the cities in each of the states that they...
www.databasejournal.com/features/oracle/article.php/333... www.databasejournal.com/features/oracle/article.php/3335331/Data-Modeling-Breaking--Fixing-First-Normal-Form-1NF.htm
Redundancy; Normal Forms; First Normal Form; Functional Dependencies; Second Normal Form; Third Normal Form; Boyce-Codd Normal Form; Normalization ... First normal form is very simple. A table scheme is said to be in first normal form if the attribute values are indivisible. To illustrate, we considered in Chapter 1...
msdn.microsoft.com/en-us/library/aa200276(office.11).as... msdn.microsoft.com/en-us/library/aa200276(office.11).aspx
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