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DBMS > HarperDB vs. MaxDB vs. Oracle Coherence vs. RisingWave vs. Sadas Engine

System Properties Comparison HarperDB vs. MaxDB vs. Oracle Coherence vs. RisingWave vs. Sadas Engine

Editorial information provided by DB-Engines
NameHarperDB  Xexclude from comparisonMaxDB infoformerly named Adabas-D  Xexclude from comparisonOracle Coherence  Xexclude from comparisonRisingWave  Xexclude from comparisonSadas Engine  Xexclude from comparison
DescriptionUltra-low latency distributed database with an intuitive REST API supporting NoSQL and SQL (including joins). Deployment of functions and databases simultaneously with a consolidated node-level architecture.A robust and reliable RDBMS optimized to run all major SAP solutionsOracles in-memory data grid solutionA distributed RDBMS for stream processing, wire-compatible with PostgreSQLSADAS Engine is a columnar DBMS specifically designed for high performance in data warehouse environments
Primary database modelDocument storeRelational DBMSKey-value storeRelational DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.60
Rank#244  Overall
#38  Document stores
Score2.26
Rank#114  Overall
#55  Relational DBMS
Score1.97
Rank#129  Overall
#22  Key-value stores
Score0.64
Rank#238  Overall
#110  Relational DBMS
Score0.07
Rank#373  Overall
#157  Relational DBMS
Websitewww.harperdb.iomaxdb.sap.comwww.oracle.com/­java/­coherencewww.risingwave.com/­databasewww.sadasengine.com
Technical documentationdocs.harperdb.io/­docsmaxdb.sap.com/­documentationdocs.oracle.com/­en/­middleware/­standalone/­coherencedocs.risingwave.com/­docs/­current/­introwww.sadasengine.com/­en/­sadas-engine-download-free-trial-and-documentation/­#documentation
DeveloperHarperDBSAP, acquired from Software AG (Adabas-D) in 1997OracleRisingWave LabsSADAS s.r.l.
Initial release20171984200720222006
Current release3.1, August 20217.9.10.12, February 202414.1, August 20231.2, September 20238.0
License infoCommercial or Open Sourcecommercial infofree community edition availablecommercial infoLimited community edition freecommercialOpen Source infoApache Version 2.0commercial infofree trial version available
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageNode.jsC++JavaRustC++
Server operating systemsLinux
OS X
AIX
HP-UX
Linux
Solaris
Windows
All OS with a Java VMDocker
Linux
macOS
AIX
Linux
Windows
Data schemedynamic schemayesschema-freeyesyes
Typing infopredefined data types such as float or dateyes infoJSON data typesyesyesStandard SQL-types and JSONyes
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.nonononono
Secondary indexesyesyesnoyesyes
SQL infoSupport of SQLSQL-like data manipulation statementsyesnoyesyes
APIs and other access methodsJDBC
ODBC
React Hooks
RESTful HTTP/JSON API
WebSocket
ADO.NET
JDBC
ODBC
WebDAV
JCache
JPA
RESTful HTTP API
JDBC
PostgreSQL wire protocol
JDBC
ODBC
Proprietary protocol
Supported programming languages.Net
C
C#
C++
ColdFusion
D
Dart
Delphi
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Lisp
MatLab
Objective C
Perl
PHP
PowerShell
Prolog
Python
R
Ruby
Rust
Scala
Swift
.Net
C#
Java
Perl
PHP
Python
.Net
C++
Java
Go
Java
JavaScript (Node.js)
Python
.Net
C
C#
C++
Groovy
Java
PHP
Python
Server-side scripts infoStored proceduresCustom Functions infosince release 3.1yesnoUDFs in Python or Javano
Triggersnoyesyes infoLive Eventsnono
Partitioning methods infoMethods for storing different data on different nodesA table resides as a whole on one (or more) nodes in a clusternoneShardinghorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesyes infothe nodes on which a table resides can be definedSource-replica replicationyes, with selectable consistency levelnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual Consistency
Immediate Consistency
Immediate Consistency
Foreign keys infoReferential integritynoyesnonoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataAtomic execution of specific operationsACIDconfigurableno
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyes, using LMDByesyes infooptionallyyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyesyesyes infomanaged by 'Learn by Usage'
User concepts infoAccess controlAccess rights for users and rolesfine grained access rights according to SQL-standardauthentification to access the cache via certificates or http basic authenticationUsers and RolesAccess rights for users, groups and roles according to SQL-standard

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More resources
HarperDBMaxDB infoformerly named Adabas-DOracle CoherenceRisingWaveSadas Engine
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