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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By loading data into DRAM before using the data from the in-memory database, data usage and data loading are processed simultaneously, enabling high-speed big data processing, with no access lags, even with limited DRAM capacity.
In the In-Memory Database Platforms Wave, Forrester recognized, "Teradata's strength lies in delivering high performance and scale for analytical workloads, appliance integration, and strong high availability and disaster recovery, as well as broad integration with tools and programming languages.
Microsoft Azure bridges this gap by providing the capability to run EXASOL's in-memory database in the cloud.
Altibase, with over 500 enterprise clients and thousands of mission-critical deployments, is widely considered to be the most dependable, battle-tested, high performance In-Memory Database.
The survey, which covers multiple technology adoption trends and events also exhibits a strong correlation with the need for analyzing events in real-time before storing data in a repository and in-memory database use across the regions.
The Oracle In-Memory Database Cache option will enable Oracle Database users to realize the benefits of database caching technology with minimal changes to the source code of their existing applications.
Chosen for its high performance, Starcounter's in-memory database enables Heads to centralize hundreds of thousands of retail items in real time, process thousands of transactions per second, and decrease the number of hours of executing backlogs.
The Forrester Wave(TM): In-Memory Database Platforms, Q3 2015 "identifies the 11 most significant software providers" in the in-memory databases market, evaluating each vendor based on 19 weighted criteria, including current offering, strategy and market presence.
Marking its formal entry in a red-hot market that's all about speed and the near-instantaneous data recovery, Oracle has finally annnounced its much-awaited in-memory database technology,
the world's largest uranium enrichment enterprise and manufacturer of advanced process control technology for the nuclear industry, has integrated McObject's eXtremeDB in-memory database system and the QNX Neutrino RTOS within its process control systems and equipment.
TimesTen Performance Software has launched a new version of TimesTen, the company's popular in-memory database, for Wind River's VxWorks real-time operating system (RTOS).
The notice of allowance for our patent application is a major milestone for us and our in-memory database built on our VMDBMS technology," said Asa Holmstrom, CEO of Starcounter.