Deciding between an artificial primary key and a natural key for a Products table

Deciding between an artificial primary key and a natural key for a
Products table



1.Unique key - Wikipedia, the free encyclopedia

Description:Differences between Primary Key and Unique Key: Primary Key 1.
A primary key cannot allow null values. (You cannot define a primary key
on columns that allow nulls.)



2.SQL SERVER – Difference Between Candidate Keys and ...

Description:22-10-2009 · Introduction. Not long ago, I had an interesting
and extended debate with one of my friends regarding which column should
be primary key in a table.



3.Coding Horror: Primary Keys: IDs versus GUIDs

Description:I don't like using GUIDs as primary keys because when you deal
with high volumes, you pay a big price for the extra bytes. You pay it in
the join operations, in the ...



4.Lighting - Wikipedia, the free encyclopedia

Description:Lighting or illumination is the deliberate use of light to
achieve a practical or aesthetic effect. Lighting includes the use of both
artificial light sources like ...



5.Composite Primary Keys - SQLTeam.com

Description:Composite Primary Keys Ah … primary keys … such a topic! When
discussing what columns to define as a primary key in your data models,
two large points always tend ...



6.Human Knowledge: Foundations and Limits

Description:Why is there something rather than nothing? Might the world be
an illusion or dream? What exists beyond the human senses? What happens
after death?



7.Composite keys are evil | Jeremy D. Miller

Description:01-02-2007 · Composite keys are used for performance and to
maintain data integrity within your chosen RDBMS (that supports composite
keys). Surrogate keys add overhead ...



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9.Organic foods: Are they safer? More nutritious? - Mayo Clinic

Description:Organic foods: Are they safer? More nutritious? Discover the
real difference between organic foods and their traditionally grown
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10.artificial intelligence: Definition from Answers.com

Description:artificial intelligence n. ( Abbr. AI ) The ability of a
computer or other machine to perform those activities that are normally
thought to require intelligence.