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Oracle Partitioning

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

Faster SQL – Oracle is partition-aware, and some SQL may improve is speed by several orders of magnitude (over 100x faster).

Index range scans – Oracle partitioning physically sequences rows in index-order causing a dramatic improvement (over 10x faster) in the speed of partition-key scans.

Full-table scans – Oracle partition pruning only accesses those data blocks required by the query.

Table joins – Oracle partition-wise joins take the specific sub-set of the query partitions, causing huge speed improvements on nested loop and hash joins

Updates – Oracle parallel query for partitions improves batch load speed.
 
 
 
 

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