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Statements

Subject Item
dbr:In-memory_database
rdf:type
owl:Thing dbo:MusicGenre
rdfs:label
In-memory database
rdfs:comment
An in-memory database (IMDB, or main memory database system (MMDB) or memory resident database) is a database management system that primarily relies on main memory for computer data storage. It is contrasted with database management systems that employ a disk storage mechanism. In-memory databases are faster than disk-optimized databases because disk access is slower than memory access, the internal optimization algorithms are simpler and execute fewer CPU instructions. Accessing data in memory eliminates seek time when querying the data, which provides faster and more predictable performance than disk.
rdfs:seeAlso
dbr:Atomicity dbr:Isolation dbr:Consistency dbr:Durability
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dct:subject
dbc:Database_management_systems dbc:Computer_memory
gold:hypernym
dbr:System
prov:wasDerivedFrom
n14:In-memory_database?oldid=1054506147&ns=0
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dbo:wikiPageLength
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dbo:wikiPageRevisionID
1054506147
dbo:wikiPageWikiLink
dbr:Analytics dbr:NVDIMM dbr:Random-access_memory dbr:Disk_storage dbr:Cache_(computing) dbc:Database_management_systems dbr:WebDNA dbr:Volatile_memory dbr:2000s_in_science_and_technology dbr:NewSQL dbr:NoSQL dbr:Persistence_(computer_science) dbr:Computer_data_storage dbr:Database_engine dbr:Failover dbr:Replication_(computing) dbr:In-memory_processing dbr:Distributed_data_store dbr:EEPROM dbr:Non-volatile_random-access_memory dbr:Supercapacitor dbr:Database dbr:Set-top_box dbr:List_of_in-memory_databases dbr:Comparison_of_relational_database_management_systems dbr:Transaction_log dbr:Embedded_database dbr:Transaction_processing_system dbr:Areal_density_(computer_storage) dbr:Mobile_advertising dbr:Snapshot_(computer_storage) dbr:High_availability dbr:ACID dbr:Hard_disk_drive_performance_characteristics dbr:Cloud_computing dbc:Computer_memory dbr:Consumer_electronics
dbo:abstract
An in-memory database (IMDB, or main memory database system (MMDB) or memory resident database) is a database management system that primarily relies on main memory for computer data storage. It is contrasted with database management systems that employ a disk storage mechanism. In-memory databases are faster than disk-optimized databases because disk access is slower than memory access, the internal optimization algorithms are simpler and execute fewer CPU instructions. Accessing data in memory eliminates seek time when querying the data, which provides faster and more predictable performance than disk. Applications where response time is critical, such as those running telecommunications network equipment and mobile advertising networks, often use main-memory databases. IMDBs have gained much traction, especially in the data analytics space, starting in the mid-2000s – mainly due to multi-core processors that can address large memory and due to less expensive RAM. A potential technical hurdle with in-memory data storage is the volatility of RAM. Specifically in the event of a power loss, intentional or otherwise, data stored in volatile RAM is lost. With the introduction of non-volatile random-access memory technology, in-memory databases will be able to run at full speed and maintain data in the event of power failure.
foaf:isPrimaryTopicOf
n14:In-memory_database