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DBMS > OpenEdge vs. openGemini vs. Realm vs. VelocityDB

System Properties Comparison OpenEdge vs. openGemini vs. Realm vs. VelocityDB

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Editorial information provided by DB-Engines
NameOpenEdge  Xexclude from comparisonopenGemini  Xexclude from comparisonRealm  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionApplication development environment with integrated database management systemAn open source distributed Time Series DBMS with high concurrency, high performance, and high scalabilityA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core DataA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelRelational DBMSTime Series DBMSDocument storeGraph DBMS
Object oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.45
Rank#85  Overall
#46  Relational DBMS
Score0.09
Rank#361  Overall
#37  Time Series DBMS
Score7.41
Rank#52  Overall
#8  Document stores
Score0.11
Rank#354  Overall
#37  Graph DBMS
#15  Object oriented DBMS
Websitewww.progress.com/­openedgewww.opengemini.org
github.com/­openGemini
realm.iovelocitydb.com
Technical documentationdocumentation.progress.com/­output/­ua/­OpenEdge_latestdocs.opengemini.org/­guiderealm.io/­docsvelocitydb.com/­UserGuide
DeveloperProgress Software CorporationHuawei and openGemini communityRealm, acquired by MongoDB in May 2019VelocityDB Inc
Initial release1984202220142011
Current releaseOpenEdge 12.2, March 20201.1, July 20237.x
License infoCommercial or Open SourcecommercialOpen Source infoApache Version 2.0Open Sourcecommercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageGoC#
Server operating systemsAIX
HP-UX
Linux
Solaris
Windows
Linux
Windows
Android
Backend: server-less
iOS
Windows
Any that supports .NET
Data schemeyesschema-freeyesyes
Typing infopredefined data types such as float or dateyesInteger, Float, Boolean, Stringyesyes
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.yesnonono
Secondary indexesyesyesyesyes
SQL infoSupport of SQLyes infoclose to SQL 92SQL-like query languagenono
APIs and other access methodsJDBC
ODBC
HTTP REST.Net
Supported programming languagesProgress proprietary ABL (Advanced Business Language)C
C++
Go
Java
JavaScript (Node.js)
Python
Rust
.Net
Java infowith Android only
Objective-C
React Native
Swift
.Net
Server-side scripts infoStored proceduresyesnono inforuns within the applications so server-side scripts are unnecessaryno
Triggersyesnoyes infoChange ListenersCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioning infosince Version 11.4ShardingnoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationyesnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyes infoIn-Memory realmyes
User concepts infoAccess controlUsers and groupsAdministrators and common users accountsyesBased on Windows Authentication

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More resources
OpenEdgeopenGeminiRealmVelocityDB
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