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DBMS > c-treeACE vs. c-treeEDGE vs. H2 vs. Realm

System Properties Comparison c-treeACE vs. c-treeEDGE vs. H2 vs. Realm

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Editorial information provided by DB-Engines
Namec-treeACE  Xexclude from comparisonc-treeEDGE  Xexclude from comparisonH2  Xexclude from comparisonRealm  Xexclude from comparison
DescriptionHigh speed key-value store, desgined for high availability, mission critical applications with automatic recovery and immediately consistent transaction support.Database built for IoT edge computing, which runs natively on ARM or x86 processors and on major IoT operating systems.Full-featured RDBMS with a small footprint, either embedded into a Java application or used as a database server.A DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core Data
Primary database modelKey-value store
Relational DBMS
Key-value store
Relational DBMS
Relational DBMSDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.52
Rank#206  Overall
#34  Key-value stores
#99  Relational DBMS
Score0.38
Rank#227  Overall
#40  Key-value stores
#106  Relational DBMS
Score7.06
Rank#49  Overall
#29  Relational DBMS
Score8.23
Rank#46  Overall
#8  Document stores
Websitewww.faircom.com/­-products/­-c-treeacewww.faircom.com/­-products/­-c-treeedgewww.h2database.comrealm.io
Technical documentationlearn.faircomcorp.com/­developers/­documentation_directorylearn.faircomcorp.com/­developers/­documentation_directorywww.h2database.com/­html/­main.htmlrealm.io/­docs
DeveloperFairCom CorporationFairCom CorporationThomas MuellerRealm, acquired by MongoDB in May 2019
Initial release1979197920052014
Current releaseV11.5, November 2017V1, Juni 20181.4.200, October 2019
License infoCommercial or Open Sourcecommercial infoRestricted, free version availablecommercial infoRestricted, free version availableOpen Source infodual-licence (Mozilla public license, Eclipse public license)Open Source
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 languageANSI C, C++ANSI C, C++Java
Server operating systemsAIX
FreeBSD
HP-UX
Linux
NetBSD
OS X
QNX
SCO
Solaris
VxWorks
Windows infoeasily portable to other OSs
Android
Linux
Raspbian
Windows infoeasily portable to other OSs
All OS with a Java VMAndroid
Backend: server-less
iOS
Windows
Data schemeFlexible Schema (defined schema, partial schema, schema free)Flexible Schema (defined schema, partial schema, schema free)yesyes
Typing infopredefined data types such as float or dateyes, ANSI Standard SQL Typesyes, ANSI Standard SQL Typesyesyes
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.nononono
Secondary indexesyesyesyesyes
SQL infoSupport of SQLyes infoANSI SQL queriesyes infoANSI SQL queriesyesno
APIs and other access methodsADO.NET
Direct SQL
JDBC
ODBC
RESTful HTTP API
ADO.NET
Direct SQL
IoT Microservice layer
JDBC
MQTT (Message Queue Telemetry Transport)
ODBC
RESTful HTTP API
JDBC
ODBC
Supported programming languages.Net
C
C#
C++
Java
JavaScript
PHP
Python
Visual Basic
.Net
C
C#
C++
Java
JavaScript
PHP
Python
Visual Basic
Java.Net
Java infowith Android only
Objective-C
React Native
Swift
Server-side scripts infoStored proceduresyes info.Net, JavaScript, C/C++yes info.Net, JavaScript, C/C++Java Stored Procedures and User-Defined Functionsno inforuns within the applications so server-side scripts are unnecessary
Triggersyesyesyesyes infoChange Listeners
Partitioning methods infoMethods for storing different data on different nodesFile partitioning, horizontal partitioning, sharding infoCustomizable business rules for table partitioningFile partitioning infoCustomizable business rules for partitioningnonenone
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoSynchronous and asynchronous realtime replication based on transaction logsyes infoSynchronous and asynchronous realtime replication based on transaction logsWith clustering: 2 database servers on different computers operate on identical copies of a databasenone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Tunable Consistency
Immediate Consistency
Tunable Consistency
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyes infowhen using SQLyes infowhen using SQLyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayes infoacross SQL and NoSQLyes infoacross SQL and NoSQLyes, multi-version concurrency control (MVCC)
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.yesyesyesyes infoIn-Memory realm
User concepts infoAccess controlFine grained user, group and file access rights managed across SQL (per ANSI standard) and NoSQL.Fine grained user, group and file access rights managed across SQL (per ANSI standard) and NoSQL.fine grained access rights according to SQL-standardyes
More information provided by the system vendor
c-treeACEc-treeEDGEH2Realm
Specific characteristicsSpeed, reliability and consistency are the reasons businesses choose FairCom’s c-treeACE...
» more
The c-treeEDGE IoT Database is a fast, flexible solution with a robust architecture...
» more
Now a part of MongoDB Data Platform , Realm Database is the fast, easy to use, and...
» more
Competitive advantagesTop Features High-speed transaction processing Immediately consistent, ACID-compliant,...
» more
Top Features Micro footprint: As low as 37 MB IoT communication interfaces : MQTT,...
» more
Realm ensures offline-first functionality, meaning apps run smoothly and deliver...
» more
Typical application scenariosc-treeACE speed, reliability, and flexibility are direct reasons this technology...
» more
c-treeEDGE can be deployed at or near the data collection point (sensors) and used...
» more
Mobile Consumer Apps First-Line Worker Apps
» more
Key customersVISA, UPS, Verizon, Motorola, CommVault, Thomson Reuters, ACI, BNY Mellon, Rockwell...
» more
New product
» more
Cathay Pacific Royal Carribbean Cruise Lines Open Source Database powers apps built...
» more
Market metricsFrom banking and financial transactions, transportation, warehouse automation, package...
» more
New product
» more
Used by 100,000+ developers 2 bn installs Currently used in 40k+ applications in...
» more
Licensing and pricing modelsJust as the technical aspects of c-treeACE are flexible to meet operation requirements,...
» more
Just as the technical aspects of c-treeEDGE are flexible to meet operation requirements,...
» more
Realm database is licensed under the Apache License v2.0.
» more

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More resources
c-treeACEc-treeEDGEH2Realm
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Recent citations in the news

FairCom names new senior sales director
27 January 2020, PRNewswire

FairCom joins INCITS committee that defines GQL, SQL standards
21 January 2020, Yahoo Finance

FairCom and Software AG sign new contract for c-treeACE Database
22 March 2019, PRNewswire

Database leader FairCom releases c-treeACE V11.5
8 November 2017, PR Newswire

Database leader FairCom celebrates 40 years of providing fast, reliable solutions
6 November 2019, Yahoo Finance

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FairCom names new senior sales director | News
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