Browse Definitions :

BACKGROUND IMAGE: iSTOCK/GETTY IMAGES

This content is part of the Essential Guide: SQL 2014: Investigating Microsoft's latest database release
Definition

in-memory database

An in-memory database (IMDB, also known as a main memory database or MMDB) is a database whose data is stored in main memory to facilitate faster response times. Source data is loaded into system memory in a compressed, non-relational format. In-memory databases streamline the work involved in processing queries

An IMDB is one type of analytic database, which is a read-only system that stores historical data on metrics for business intelligence/business analytics (BI/BA) applications, typically as part of a data warehouse or data mart. These systems allow users to run queries and reports on the information contained, which is regularly updated  to incorporate recent transaction data from an organization’s operational systems.

In addition to providing extremely fast query response times, in-memory analytics can reduce or eliminate the need for data indexing and storing pre-aggregated data in OLAP cubes or aggregate tables.  This capacity reduces IT costs and allows faster implementation of BI/BA applications.

Three developments in recent years have made in-memory analytics increasingly feasible: 64-bit computing, multi-core servers and lower RAM prices. 

 

See also: big data analytics, association rules (in data mining), ad hoc analysis, unstructured data, data scientist, noisy data, descriptive modeling, opinion mining -sentiment mining, deep analytics

 

This was last updated in August 2012

Next Steps

Expert Craig S. Mullins provides an in-depth overview of the pros and cons of the in-memory DBMS.

Continue Reading About in-memory database

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

SearchCompliance

SearchSecurity

  • cybersecurity

    Cybersecurity is the protection of internet-connected systems, including hardware, software and data, from cyberattacks.

  • asymmetric cryptography (public key cryptography)

    Asymmetric cryptography, also called public key cryptography, uses a pair of numerical keys that are mathematically related to ...

  • digital signature

    A digital signature is a mathematical technique used to validate the authenticity and integrity of a message, software or digital...

SearchHealthIT

SearchDisasterRecovery

  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

  • disaster recovery team

    A disaster recovery team is a group of individuals focused on planning, implementing, maintaining, auditing and testing an ...

  • cloud insurance

    Cloud insurance is any type of financial or data protection obtained by a cloud service provider. 

SearchStorage

  • hard disk drive (HDD)

    A computer hard disk drive (HDD) is a non-volatile memory hardware device that controls the positioning, reading and writing of ...

  • byte

    In most computer systems, a byte is a unit of data that is eight binary digits long. Bytes are often used to represent a ...

  • network-attached storage (NAS)

    Network-attached storage (NAS) is dedicated file storage that enables multiple users and heterogeneous client devices to retrieve...

Close