DB-EnginesInfluxDB: Focus on building software with an easy-to-use serverless, scalable time series platformEnglish
Deutsch
Knowledge Base of Relational and NoSQL Database Management Systemsprovided by solid IT

DBMS > CouchDB vs. eXtremeDB vs. LevelDB

System Properties Comparison CouchDB vs. eXtremeDB vs. LevelDB

Please select another system to include it in the comparison.

Editorial information provided by DB-Engines
NameCouchDB infostands for "Cluster Of Unreliable Commodity Hardware"  Xexclude from comparisoneXtremeDB  Xexclude from comparisonLevelDB  Xexclude from comparison
DescriptionA native JSON - document store inspired by Lotus Notes, scalable from globally distributed server-clusters down to mobile phones.Natively in-memory DBMS with options for persistency, high-availability and clusteringEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string values
Primary database modelDocument storeRelational DBMS
Time Series DBMS
Key-value store
Secondary database modelsSpatial DBMS infousing the Geocouch extension
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score16.97
Rank#41  Overall
#7  Document stores
Score0.68
Rank#209  Overall
#100  Relational DBMS
#15  Time Series DBMS
Score3.06
Rank#101  Overall
#18  Key-value stores
Websitecouchdb.apache.orgwww.mcobject.comgithub.com/­google/­leveldb
Technical documentationdocs.couchdb.org/­en/­stablewww.mcobject.com/­docs/­extremedb.htmgithub.com/­google/­leveldb/­blob/­master/­doc/­index.md
DeveloperApache Software Foundation infoApache top-level project, originally developed by Damien Katz, a former Lotus Notes developerMcObjectGoogle
Initial release200520012011
Current release3.2.2, April 20228.2, 20211.23, February 2021
License infoCommercial or Open SourceOpen Source infoApache version 2commercialOpen Source infoBSD
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageErlangC and C++C++
Server operating systemsAndroid
BSD
Linux
OS X
Solaris
Windows
AIX
HP-UX
Linux
macOS
Solaris
Windows
Illumos
Linux
OS X
Windows
Data schemeschema-freeyesschema-free
Typing infopredefined data types such as float or datenoyesno
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.nono infosupport of XML interfaces availableno
Secondary indexesyes infovia viewsyesno
SQL infoSupport of SQLnoyes infowith the option: eXtremeSQLno
APIs and other access methodsRESTful HTTP/JSON API.NET Client API
JDBC
JNI
ODBC
Proprietary protocol
RESTful HTTP API
Supported programming languagesC
C#
ColdFusion
Erlang
Haskell
Java
JavaScript
Lisp
Lua
Objective-C
OCaml
Perl
PHP
PL/SQL
Python
Ruby
Smalltalk
.Net
C
C#
C++
Java
Lua
Python
Scala
C++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
Server-side scripts infoStored proceduresView functions in JavaScriptyesno
Triggersyesyes infoby defining eventsno
Partitioning methods infoMethods for storing different data on different nodesSharding infoimproved architecture with release 2.0horizontal partitioning / shardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication
Source-replica replication
Active Replication Fabric™ for IoT
Multi-source replication infoby means of eXtremeDB Cluster option
Source-replica replication infoby means of eXtremeDB High Availability option
none
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infoatomic operations within a single document possibleACIDno
Concurrency infoSupport for concurrent manipulation of datayes infostrategy: optimistic lockingyes infoOptimistic (MVCC) and pessimistic (locking) strategies availableyes
Durability infoSupport for making data persistentyesyesyes infowith automatic compression on writes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes
User concepts infoAccess controlAccess rights for users can be defined per databaseno
More information provided by the system vendor
CouchDB infostands for "Cluster Of Unreliable Commodity Hardware"eXtremeDBLevelDB
Specific characteristicseXtremeDB is an in-memory and/or persistent database system that offers an ultra-small...
» more
Competitive advantageseXtremeDB databases can be modeled relationally or as objects and can utilize SQL...
» more
Typical application scenariosIoT application across all markets: Industrial Control, Netcom, Telecom, Defense,...
» more
Key customersSchneider Electronics, F5 Networks, TNS, Boeing, Northrop Grumman, GoPro, ViaSat,...
» more
Market metricsWith hundreds of customers and over 30 million devices/applications using the product...
» more
Licensing and pricing modelsFor server use cases, there is a simple per-server license irrespective of the number...
» more

We invite representatives of system vendors to contact us for updating and extending the system information,
and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

Related products and services

We invite representatives of vendors of related products to contact us for presenting information about their offerings here.

More resources
CouchDB infostands for "Cluster Of Unreliable Commodity Hardware"eXtremeDBLevelDB
DB-Engines blog posts

Couchbase climbs up the DB-Engines Ranking, increasing its popularity by 10% every month
2 June 2014, Matthias Gelbmann

show all

Recent citations in the news

NoSQL Software Market Is Likely to Experience a Tremendous Growth in Near Future | MongoDB, Amazon, ArangoDB, Azure Cosmos DB, Couchbase – Carbon Valley Farmer and Miner
25 May 2022, Carbon Valley Farmer and Miner

IBM Cloudant pulls plan to fund new foundational layer for CouchDB
15 March 2022, The Register

How to Connect Your Flask App With CouchDB: A NoSQL Database - MUO
14 August 2021, MakeUseOf

Syncing Hyperledger Fabric StateDB (CouchDB) to Elasticsearch - Latest Digital Transformation Trends | Cloud News
4 November 2021, Wire19

Apache CouchDB 3.0 NoSQL Database: A Major Milestone -- ADTmag
27 February 2020, ADT Magazine

provided by Google News

McObject Announces Availability of eXtremeDB/rt for Green Hills Software's INTEGRITY RTOS
21 April 2022, GlobeNewswire

McObject Collaborates with Wind River to Deliver First-Ever Deterministic Database System for VxWorks-based Real-Time Embedded Systems
14 September 2021, GlobeNewswire

McObject and Siemens Embedded Announce Immediate Availability of eXtremeDB/rt for Nucleus RTOS
23 February 2022, GlobeNewswire

eXtremeDB 8.1 adds features for easier, more sophisticated database management
19 November 2019, GlobeNewswire

McObject and Lynx Software Technologies Team Up for the First COTS Hard Real-Time DBMS for Mission- and Safety-Critical Systems
21 October 2021, GlobeNewswire

provided by Google News

Malicious Roblox Cookie and Discord Token Stealers Hit PyPI Repository
2 February 2022, Security Boulevard

Beware: New Kraken botnet easily fools Windows Defender and steals Crypto wallet data
20 February 2022, Neowin

Bitcoin Immutability Is A Shared Myth- A Brief History Of Tx Reversals And Chain Rollbacks - CryptoTicker.io
10 October 2021, Bitcoin Price, Ethereum Price & Crypto News

How Infrastructure Providers Can Enable Web3 – The New Stack
23 December 2021, thenewstack.io

Speedb is a drop-in replacement for RocksDB that wants to take the embedded key-value store world by storm
17 November 2021, ZDNet

provided by Google News

Job opportunities

PHP Developer
Mindfire Technology, Layton, UT

InsuranceNow Developer
Eagle Creek Software Services, Andover, MA

Bot Developer
Intone Networks, Remote

InsuranceNow Developer
Eagle Creek Software Services, Phoenix, AZ

Erlang Developer
2600Hz, Henderson, NV

WPF Sr. Engineer
LT Technology Services, Santa Clara, CA

Senior Software Engineer
IT People, Morrisville, NC

Storage Software Engineer/Researcher, Infrastructure System Lab
ByteDance, Mountain View, CA

Principal Engineer - Database Internals
Snowflake, San Mateo, CA

Senior Software Engineer- Database Internals
Snowflake, San Mateo, CA

Senior Database Engineer - DataHub
Bloomberg, New York, NY

jobs by Indeed



Share this page

Featured Products

The definitive guide for Cassandra

Imagine What You Could Do if Scalability Wasn‘t a Problem!
Download the Cassandra e-book for free!

Neo4j logo

See for yourself how a graph database can make your life easier.
Use Neo4j online for free.

Vertica logo

Vertica Accelerator. The fastest analytics and machine learning, delivered as SaaS, with automated setup, administration, and management. Free trial.

Redis logo

The world’s most loved real‑time data platform.
Try free

MariaDB logo

SkySQL, the ultimate
MariaDB cloud, is here.

Get started with SkySQL today!

Present your product here