Oracle Partioning

clipped from www.dba-oracle.com

Partitioning is a
divide-and-conquer approach to improving Oracle maintenance and SQL
performance.  Anyone with un-partitioned databases over 500 gigabytes is
courting disaster.  Databases become unmanageable, and serious problems
occur: 


-        
Files recovery takes
days, not minutes


-        
Rebuilding indexes
(important to re-claim space and
improve performance) can take days


-        
Queries with
full-table scans take hours to complete


-        
Index range scans
become inefficient


There are
many compelling reasons to implement partitioning for larger databases,
and partitioning has become the de-facto standard for systems over 500
gigabytes.  Oracle partitioning has many benefits to improve
performance and manageability:

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