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Index Concept of Data base

Neel Sharma
Greenhorn

Joined: Aug 16, 2011
Posts: 12
This is not related to any java topics.. But i need to know in detail about indices.

I read about clustured and Non clustured index on many websites but i did'nt get an exact idea of them.

In clustured index the physical ordering of the data is sorted and in non-clustred logical ordering is sorted, what it exactly means?

I appreciate if any one can explain this in detail with example.


Thanks
Neel
Jeanne Boyarsky
internet detective
Marshal

Joined: May 26, 2003
Posts: 30361
    
150

Wikipedia describes this well. Take a look at that and then ask a more specific question here about what you don't understand.


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It is sorta covered in the JavaRanch Style Guide.
 
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