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DBMS > Memgraph vs. OpenQM vs. Sadas Engine

System Properties Comparison Memgraph vs. OpenQM vs. Sadas Engine

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Editorial information provided by DB-Engines
NameMemgraph  Xexclude from comparisonOpenQM infoalso called QM  Xexclude from comparisonSadas Engine  Xexclude from comparison
DescriptionA hybrid, in-memory first, distributed graph DBMS delivering high-performance on analytical and transactional workloads at enterprise scaleQpenQM is a high-performance, self-tuning, multi-value DBMSSADAS Engine is a columnar DBMS specifically designed for high performance in Data warehouse environments
Primary database modelGraph DBMSMultivalue DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.05
Rank#314  Overall
#30  Graph DBMS
Score0.27
Rank#243  Overall
#10  Multivalue DBMS
Score0.00
Rank#338  Overall
#136  Relational DBMS
Websitememgraph.comwww.openqm.comwww.sadasengine.com
Technical documentationdocs.memgraph.comwww.openqm.com/­support/­documentationwww.sadasengine.com/­index.php/­downloads/­documentation-columnar-db
DeveloperMemgraph LtdMartin PhillipsSADAS s.r.l.
Initial release201719932006
Current release3.4-128.0
License infoCommercial or Open Sourcecommercial infoFree license availableOpen Source infoGPLv2, extended commercial license availablecommercial infofree trial version available
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC and C++C++
Server operating systemsLinuxAIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
AIX
Linux
Windows
Data schemeschema-free and schema-optionalyes infowith some exceptionsyes
Typing infopredefined data types such as float or dateyesyes
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.noyesno
Secondary indexesyesyes
SQL infoSupport of SQLnonoyes
APIs and other access methodsBolt protocol
Cypher query language
JDBC
ODBC
Proprietary protocol
Supported programming languages.Net
C
C++
Elixir
Go
Haskell
Java
JavaScript
PHP
Python
Ruby
Scala
.Net
Basic
C
Java
Objective C
PHP
Python
.Net
C
C#
C++
Groovy
Java
PHP
Python
Server-side scripts infoStored proceduresyesno
Triggersyesno
Partitioning methods infoMethods for storing different data on different nodesSharding infodynamic graph partitioningyeshorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-Master replication using RAFTyesnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyes inforelationships in graphsnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID infowith snapshot isolationACID
Concurrency infoSupport for concurrent manipulation of datayes, multi-version concurrency control (MVCC)yesyes
Durability infoSupport for making data persistentyes infowith periodic snapshot and write-ahead logging (WAL) of changesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes infomanaged by 'Learn by Usage'
User concepts infoAccess controlUsers, roles and permissionsAccess rights can be defined down to the item levelAccess rights for users, groups and roles according to SQL-standard

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More resources
MemgraphOpenQM infoalso called QMSadas Engine
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