In a database, what is the difference betwen a key and an index?

In a database, what is the difference betwen a key and an index?



1.EMR vs EHR – What is the Difference? | Health IT ...

Description:EMR vs EHR? Electronic medical records vs electronic health
records? Confusion abounds – learn more about the main differences between
EMRs and EHRs.



2.Data visualization - Wikipedia, the free encyclopedia

Description:Data visualization or data visualisation is the creation and
study of the visual representation of data, meaning "information that has
been abstracted in some ...



3.IBM Data magazine: It's all about the data.

Description:The magazine's mission is to deliver content on data
management developments and IBM advances, as well as create a community of
information management professionals.



4.Data journalism and data visualization | News | The Guardian

Description:Data journalism and data visualization from the Guardian



5.Data, data everywhere | The Economist

Description:25-02-2010 · WHEN the Sloan Digital Sky Survey started work in
2000, its telescope in New Mexico collected more data in its first few
weeks than had been amassed in the ...



6.What Is Life - Wikipedia, the free encyclopedia

Description:"What Is Life" was released in late November 1970 as the first
track on side two of All Things Must Pass, in its original LP format.
Along with "My Sweet Lord" and ...



7.How Google Builds Its Maps—and What It Means for the ...

Description:Google Street View wasn't built to create maps like this, but
the geo team quickly realized that computer vision could get them
incredible data for ground truthing ...



8.Difference Between American and Indian culture ...

Description:American vs Indian culture No two cultures are the same. The
American and Indian cultures have very vast differentiation between
them..While the culture of



9.Computer Glossary, Computer Terms - Technology Definitions ...

Description:coaxial cable. Coaxial cable is the kind of copper cable used
by cable TV companies between the community antenna and user homes and
businesses.



10.Consumer Price Index Summary - Bureau of Labor Statistics

Description:Table 1. Consumer Price Index for All Urban Consumers (CPI-U):
U. S. city average, by expenditure category ; Table 2. Consumer Price
Index for All Urban Consumers ...