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Some are saying that the chip cache is the new RAM, and RAM is the new disk. In the DBMS world, this means that disk-optimized DBMSs (those that optimize their operations around the management of data on disk storage) are giving way to memory-optimized DBMSs (those that optimize operations around the management of data in memory, using disk for overflow and recovery purposes). A number of startups have unveiled exciting new technology along these lines. It's not just the startups that are having all the fun; leading DBMS vendors such as Oracle, IBM, SAP, and Teradata have also introduced DBMS technology that is either partially or entirely memory-optimized. This technology is sure to go mainstream in many enterprise data centers by the end of 2014.

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