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What is the purpose of a cluster?
Oracle does not allow a user to specifically locate tables, since that is a part of the function of the RDBMS. However, for the purpose of increasing performance, oracle allows a developer to create a CLUSTER. A CLUSTER provides a means for storing data from different tables together for faster retrieval than if the table placement were left to the RDBMS.



  
Total Answers and Comments: 3 Last Update: February 06, 2008   
  
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 Best Rated Answer
Submitted by: g_sidhu
 

Clustering is a method of storing tables that are intimately related and often joined together into the same area on disk. For example, instead of the BOOKSHELF table being in one section of the disk and the BOOKSHELF_AUTHOR table being somewhere else, their rows could be interleaved together in a single area, called a cluster.



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shiiva
July 05, 2005 01:43:48   #1  
ch.sarada        

RE: What is the purpose of a cluster?
hai sir

you have wrote oracle doesn't allow a user to specifically lacate the tables that's means.I didn't understand clearelly.please tell me that meaning
thank u.

 
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February 27, 2006 05:26:07   #2  
pavan        

RE: What is the purpose of a cluster?

cluster is a private sql area where data stored more than one table.

use is fast retreving of data .


 
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February 06, 2008 12:20:54   #3  
g_sidhu Member Since: August 2007   Contribution: 122    

RE: What is the purpose of a cluster?

Clustering is a method of storing tables that are intimately related and often joined together into the same area on disk. For example instead of the BOOKSHELF table being in one section of the disk and the BOOKSHELF_AUTHOR table being somewhere else their rows could be interleaved together in a single area called a cluster.


 
Is this answer useful? Yes | NoAnswer is useful 1   Answer is not useful 0Overall Rating: +1    


 
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