DB-EnginesExtremeDB: the first and only COTS deterministic embedded database management system for mission- and safety-critical hard real-time applicationsEnglish
Deutsch
Knowledge Base of Relational and NoSQL Database Management Systemsprovided by solid IT

DBMS > Blueflood vs. LevelDB vs. MariaDB vs. Microsoft Azure Cosmos DB vs. VelocityDB

System Properties Comparison Blueflood vs. LevelDB vs. MariaDB vs. Microsoft Azure Cosmos DB vs. VelocityDB

Editorial information provided by DB-Engines
NameBlueflood  Xexclude from comparisonLevelDB  Xexclude from comparisonMariaDB  Xexclude from comparisonMicrosoft Azure Cosmos DB infoformer name was Azure DocumentDB  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionScalable TimeSeries DBMS based on CassandraEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesMySQL application compatible open source RDBMS, enhanced with high availability, security, interoperability and performance capabilities. MariaDB ColumnStore provides a column-oriented storage engine and MariaDB Xpand supports distributed SQL.Globally distributed, horizontally scalable, multi-model database serviceA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelTime Series DBMSKey-value storeRelational DBMSDocument store
Graph DBMS
Key-value store
Wide column store
Graph DBMS
Object oriented DBMS
Secondary database modelsDocument store
Graph DBMS infowith OQGraph storage engine
Spatial DBMS
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.05
Rank#320  Overall
#29  Time Series DBMS
Score3.08
Rank#98  Overall
#16  Key-value stores
Score106.42
Rank#12  Overall
#8  Relational DBMS
Score40.04
Rank#26  Overall
#3  Document stores
#2  Graph DBMS
#3  Key-value stores
#3  Wide column stores
Score0.06
Rank#318  Overall
#32  Graph DBMS
#17  Object oriented DBMS
Websiteblueflood.iogithub.com/­google/­leveldbmariadb.com infoSite of MariaDB Corporation
mariadb.org infoSite of MariaDB Foundation
azure.microsoft.com/­services/­cosmos-dbvelocitydb.com
Technical documentationgithub.com/­rackerlabs/­blueflood/­wikigithub.com/­google/­leveldb/­blob/­master/­doc/­index.mdmariadb.com/­kb/­en/­librarydocs.microsoft.com/­azure/­cosmos-dbvelocitydb.com/­UserGuide
DeveloperRackspaceGoogleMariaDB Corporation Ab (MariaDB Enterprise),
MariaDB Foundation (community MariaDB Server) infoThe lead developer Monty Widenius is the original author of MySQL
MicrosoftVelocityDB Inc
Initial release20132011200920142011
Current release1.23, February 202110.6.5, November 20217.x
License infoCommercial or Open SourceOpen Source infoApache 2.0Open Source infoBSDOpen Source infoGPL version 2, commercial enterprise subscription availablecommercialcommercial
Cloud-based only infoOnly available as a cloud servicenononoyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
SkySQL (The Ultimate MariaDB Cloud): The first and only DBaaS to bring the full power of MariaDB Platform to the cloud, combining powerful enterprise features and world-class support with unrivaled ease of use and groundbreaking innovation.
Implementation languageJavaC++C and C++C#
Server operating systemsLinux
OS X
Illumos
Linux
OS X
Windows
FreeBSD
Linux
Solaris
Windows infoColumnStore storage engine not available on Windows
hostedAny that supports .NET
Data schemepredefined schemeschema-freeyes infoDynamic columns are supportedschema-freeyes
Typing infopredefined data types such as float or dateyesnoyesyes infoJSON typesyes
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.nonoyesno
Secondary indexesnonoyesyes infoAll properties auto-indexed by defaultyes
SQL infoSupport of SQLnonoyes infowith proprietary extensionsSQL-like query languageno
APIs and other access methodsHTTP RESTADO.NET
JDBC
ODBC
Proprietary native API
DocumentDB API
Graph API (Gremlin)
MongoDB API
RESTful HTTP API
Table API
.Net
Supported programming languagesC++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
Ada
C
C#
C++
D
Eiffel
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Objective-C
OCaml
Perl
PHP
Python
Ruby
Scheme
Tcl
.Net
C#
Java
JavaScript
JavaScript (Node.js)
MongoDB client drivers written for various programming languages
Python
.Net
Server-side scripts infoStored proceduresnonoyes infoPL/SQL compatibility added with version 10.3JavaScriptno
TriggersnonoyesJavaScriptCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesSharding infobased on Cassandranoneseveral options for horizontal partitioning and ShardingSharding infoImplicit feature of the cloud serviceSharding
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on CassandranoneMulti-source replication
Source-replica replication
yes infoImplicit feature of the cloud service
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononowith Hadoop integration infoIntegration with Hadoop/HDInsight on Azure*no
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Immediate ConsistencyImmediate ConsistencyBounded Staleness
Consistent Prefix
Eventual Consistency
Immediate Consistency infoConsistency level configurable on request level
Session Consistency
Immediate Consistency
Foreign keys infoReferential integritynonoyes infonot for MyISAM storage enginenono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACID infonot for MyISAM storage engineMulti-item ACID transactions with snapshot isolation within a partitionACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyes infowith automatic compression on writesyes infonot for in-memory storage engineyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes infowith MEMORY storage engineyes
User concepts infoAccess controlnonofine grained access rights according to SQL-standardAccess rights can be defined down to the item levelBased on Windows Authentication
More information provided by the system vendor
BluefloodLevelDBMariaDBMicrosoft Azure Cosmos DB infoformer name was Azure DocumentDBVelocityDB
Specific characteristicsMariaDB is the most powerful open source relational database – modern SQL and JSON...
» more
Competitive advantagesMariaDB has many features unavailable in other open source relational databases....
» more
Typical application scenariosWeb, SaaS and Cloud operational/transactional applications that require high availability,...
» more
Key customersDeutsche Bank, DBS Bank, Nasdaq, Red Hat, ServiceNow, Verizon and Walgreens Featured...
» more
Market metricsMariaDB is the default database in the LAMP stack supplied by Red Hat and SUSE Linux,...
» 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
3rd partiesNavicat for MariaDB provides a native environment for MariaDB database management and development.
» more
CData: Connect to Big Data & NoSQL through standard Drivers.
» more

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

More resources
BluefloodLevelDBMariaDBMicrosoft Azure Cosmos DB infoformer name was Azure DocumentDBVelocityDB
DB-Engines blog posts

MariaDB strengthens its position in the open source RDBMS market
5 April 2018, Matthias Gelbmann

PostgreSQL is the DBMS of the Year 2017
2 January 2018, Paul Andlinger, Matthias Gelbmann

Big gains for Relational Database Management Systems in DB-Engines Ranking
2 February 2016, Matthias Gelbmann

show all

Recent citations in the news

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

Malicious npm package caught trying to steal sensitive Discord and browser files
28 August 2020, ZDNet

Squeezing More Performance Out Of The Linux Kernel With Clang + LTO
21 July 2021, Phoronix

Malware found on my PC via discord - Virus, Trojan, Spyware, and Malware Removal Help
20 November 2021, BleepingComputer

The best IoT databases for the edge – an overview and guide
15 October 2020, AZ Big Media

provided by Google News

Back up and restore MySQL/MariaDB data for a website: Here's how
7 January 2022, TechRepublic

Principled Technologies Study Compares MariaDB Performance Between Two Sets of Google Cloud Platform Configurations with Different Generations of Intel Processors
6 January 2022, PR.com

Enterprise Database Management System (DBMS) Market Is Booming Worldwide : Teradata, MongoDB, Google Cloud, MarkLogic
25 January 2022, Digital Journal

Five risks of moving your database to the cloud
25 January 2022, MIT Technology Review

MariaDB Announces New Innovation Release Model
9 December 2021, Business Wire

provided by Google News

NoSQL Software Market Is Likely to Experience a Tremendous Growth in Near Future | MongoDB, Amazon, ArangoDB, Azure Cosmos DB, Couchbase
10 January 2022, Digital Journal

Document Databases Software Market Report SWOT Analysis by 2031 | MongoDB, Amazon, ArangoDB, Azure Cosmos DB – The Oxford Spokesman
25 January 2022, The Oxford Spokesman

Researchers discover critical flaw in Azure Cosmos DB
27 August 2021, TechTarget

Microsoft Azure Cosmos DB Incident Underscores the Need to Closely Watch Cloud Data
30 August 2021, Dark Reading

ChaosDB: Infosec bods could pull anyone's plaintext Azure Cosmos DB keys at will from Microsoft admin tools
12 November 2021, The Register

provided by Google News

Job opportunities

Principal Engineer - Database Internals
Snowflake, San Mateo, CA

Senior Software Engineer
IT People, Morrisville, NC

Storage Software Engineer/Researcher, Infrastructure System Lab
ByteDance, Seattle, WA

Full-Stack Software Engineer
Blockstream, California

Senior Database Engineer - DataHub
Bloomberg, New York, NY

MySQL/MariaDB DBA
Medical Informatics Engineering Inc, Fort Wayne, IN

MySQL/MariaDB DBA
Medical Informatics Engineering, Fort Wayne, IN

Sr. MariaDB Specialist-Location Open
Deloitte, San Juan, PR

NOC Technician M/F
smartTrade, New York, NY

MySQL/MariaDB Administration
Celebal Technologies, Englewood, NJ

Support Engineer - Cosmos DB
Microsoft, Las Colinas, TX

Cloud Solution Architecture - Cosmos DB/OSS
Microsoft, Redmond, WA

Sr. Data Engineer
GoPuff, United States

Technical Support Engineering - Cosmos DB and Azure Data Explorer
Microsoft, Charlotte, NC

Customer Engineer, Data & AI
Microsoft, New York, NY

jobs by Indeed



Share this page

Featured Products

MariaDB logo

SkySQL, the ultimate
MariaDB cloud, is here.

Get started with SkySQL today!

Neo4j logo

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

Datastax Astra logo

Build cloud-native apps fast with Astra, the open-source, multi-cloud stack for
modern data apps.
Get started with 80GB free.

AllegroGraph logo

Graph Database Leader for AI Knowledge Graph Applications - The Most Secure Graph Database Available.
Free Download

Couchbase logo

The modern database for enterprise applications. Build fast. Scale Big. Save more.
Get started today.

Present your product here