Archive for the ‘SQL Concept’ Category
Rules of Data Normalization – SQL
Posted by: moryadesigns on: September 8, 2009
- In: SQL Concept
- 1 Comment
Rules of Data Normalization 1NF Eliminate Repeating Groups – Make a separate table for each set of related attributes, and give each table a primary key. 2NF Eliminate Redundant Data – If an attribute depends on only part of a multi-valued key, remove it to a separate table. 3NF Eliminate Columns Not Dependent On [...]
Tags: 1NF, 2NF, 3NF, 4NF, 5NF, BCNF, Data, DKNF, moryadesigns, moryadesigns@gmail.com, Normalization, ONF, SQL, SQL Concept
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