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Erschienen in:
2011 | OriginalPaper | Buchkapitel
Hybrid Columnar Compression
verfasst von : Kerry Osborne, Randy Johnson, Tanel Pöder
Erschienen in: Expert Oracle Exadata
Verlag: Apress
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Hybrid Columnar Compression (HCC) is probably one of the least understood of the features that are unique to Exadata. The feature was originally rolled out in a beta version of 11gR2 and was enabled on both Exadata and non-Exadata platforms. The production release of 11gR2 restricted the feature to Exadata platforms only. Ostensibly this decision was made because the additional processing power available on the Exadata storage servers. Because the feature is restricted to Exadata, the recent documentation refers to it as Exadata Hybrid Columnar Compression (EHCC).