HyPer: Hybrid OLTP&OLAP High-Performance Database System

HyPer – A Hybrid OLTP&OLAP High Performance DBMS HyPer is a main-memory-based relational DBMS for mixed OLTP and OLAP workloads. It is a so-called all-in-one New-SQL database system that entirely deviates from classical disk-based DBMS architectures by introducing many innovative ideas including machine code generation for data-centric query processing and multi-version concurrency control, leadin

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" OLAP query processing is separated from mission-critical OLTP transaction processing by forking virtual memory snapshots. Thus, no concurrency control mechanisms are needed – other than the hardware-assisted transparent VM management – to separate the two workload classes. "