in-memory database

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in-memory database

Storing the contents of a database in main memory rather than on disk. Since memory (RAM) is considerably faster than a hard disk or even a solid state disk, complex decision support queries can be satisfied much more rapidly, and high-end computers can be configured with terabytes of memory. However, memory can fail due to power outages and component breakdown; therefore, snapshots are taken periodically and saved to permanent disk storage. See SAP HANA and RAM disk.

In Time, It Will Merge
At some point in the future, perhaps 10 or 20 years from now, main memory and disk storage will merge into one "memory/storage" pool as all storage will be addressable like DRAM memory but will be non-volatile. See future memory chips.
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The group's Kx technology, incorporating the kdb+ time-series database, is in high-performance, in-memory computing, streaming analytics and operational intelligence.
SAP Extends In-Memory Computing Leadership to Next-Generation Translytical Solutions
HANA, based on in-memory computing, provides a data platform for transactions,
SAP HANA, based on in-memory computing, provides a data platform for transactions, business analytics, predictive analytics, planning and business processing.
The technologies covered include AI, IoT, self-service visualization, SQL, in-memory computing, virtual reality, software-based virtual machines, sensor data, identity-as-a-service, and in-memory computing.
GigaSpaces provides software for in-memory computing, fast data analytics, and cloud orchestration through two product lines, InsightEdge and XAP In-Memory Computing.
GigaSpaces, with its long-standing track record in the in-memory computing market, will continue to capitalize on its technology investments and innovation in its XAP and InsightEdge product lines.
Growth in mobile, big data, analytics, in-memory computing, cloud and Internet of Things initiatives is associated with digital business and requires application and integration professionals to invest in new AIM technologies," said Mr Biscotti.
By moving data from disk to RAM, in-memory computing offers performance that is 1,000x that of disk-based systems.
With optional 4x 10GBASE-T, 4x 1000BASE-T, or 4x 10GBASE SFP+ uplink, 1x PCI-E expansion slot, and 4x LFF drives, the TYAN OpenPOWER-based platform can offer the exceptional capability for in-memory computing in a 1U implementation.
As part of the collaboration, Zain Group will deploy the SAP HANA platform - based on innovative, real-time analytics software and in-memory computing technology - as well as data mining, social networking, customer and business intelligence and predictive software solutions.
Gartner's recent report, 'Hype Cycle for In-Memory Computing 201 4' highlighted that in-memory is growing rapidly due to technology maturation and decreasing costs.