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For a long time the available amount of main memory on large server systems was not enough to hold the complete transactional data set of large enterprise applications.

Today, the situation changed. Modern servers provide up to multiple Terabytes of main memory and allow keeping the complete transactional data in memory. This eliminates multiple I/O layers and simplifies database design, allowing for high throughput of transactional and analytical queries.

Please also see our podcast on this technology concept.