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DBMS > HarperDB vs. RethinkDB vs. SAP Adaptive Server vs. XTDB

System Properties Comparison HarperDB vs. RethinkDB vs. SAP Adaptive Server vs. XTDB

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Editorial information provided by DB-Engines
NameHarperDB  Xexclude from comparisonRethinkDB  Xexclude from comparisonSAP Adaptive Server infoformer name: Sybase ASE  Xexclude from comparisonXTDB infoformerly named Crux  Xexclude from comparison
DescriptionHarperDB takes the "stack" out of "tech stack" by combining an ultra-fast document-style data store, in-memory cache, real-time message broker, and your application components into a single distributed technology.DBMS for the Web with a mechanism to push updated query results to applications in realtime.The SAP (Sybase) Adaptive Server Enterprise (ASE) is an enterprise-class RDBMSA general purpose database with bitemporal SQL and Datalog and graph queries
Primary database modelDocument storeDocument storeRelational DBMSDocument store
Secondary database modelsSpatial DBMSSpatial DBMS infowith Boeing's Spatial Query Server
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.55
Rank#243  Overall
#38  Document stores
Score2.58
Rank#105  Overall
#20  Document stores
Score32.67
Rank#25  Overall
#17  Relational DBMS
Score0.13
Rank#330  Overall
#45  Document stores
Websitewww.harperdb.iorethinkdb.comwww.sap.com/­products/­technology-platform/­sybase-ase.htmlgithub.com/­xtdb/­xtdb
www.xtdb.com
Technical documentationdocs.harperdb.io/­docsrethinkdb.com/­docshelp.sap.com/­docs/­SAP_ASEwww.xtdb.com/­docs
DeveloperHarperDBThe Linux Foundation infosince July 2017SAP, SybaseJuxt Ltd.
Initial release2017200919872019
Current release3.1, August 20212.4.1, August 202016.01.19, September 2021
License infoCommercial or Open Sourcecommercial infofree community edition availableOpen Source infoApache Version 2commercialOpen Source infoMIT License
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageNode.jsC++C and C++Clojure
Server operating systemsLinux
OS X
Linux
OS X
Windows
AIX
HP-UX
Linux
Solaris
Unix
Windows
All OS with a Java 8 (and higher) VM
Linux
Data schemedynamic schemaschema-freeyesschema-free
Typing infopredefined data types such as float or dateyes infoJSON data typesyes infostring, binary, float, bool, date, geometryyesyes, extensible-data-notation format
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 SQLSQL-like data manipulation statementsnoyeslimited SQL, making use of Apache Calcite
APIs and other access methodsJDBC
ODBC
React Hooks
RESTful HTTP/JSON API
WebSocket
ADO.NET
JDBC
ODBC
OLE DB
Tabular Data Stream (TDS)
HTTP REST
JDBC
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
C infocommunity-supported driver
C# infocommunity-supported driver
C++ infocommunity-supported driver
Clojure infocommunity-supported driver
Dart infocommunity-supported driver
Erlang infocommunity-supported driver
Go infocommunity-supported driver
Haskell infocommunity-supported driver
Java infoofficial driver
JavaScript (Node.js) infoofficial driver
Lisp infocommunity-supported driver
Lua infocommunity-supported driver
Objective-C infocommunity-supported driver
Perl infocommunity-supported driver
PHP infocommunity-supported driver
Python infoofficial driver
Ruby infoofficial driver
Scala infocommunity-supported driver
C
C++
Cobol
Java
Java
Perl
PHP
Python
Clojure
Java
Server-side scripts infoStored proceduresCustom Functions infosince release 3.1Java and Transact-SQLno
TriggersnoClient-side triggers through changefeedsyesno
Partitioning methods infoMethods for storing different data on different nodesA table resides as a whole on one (or more) nodes in a clusterSharding inforange basedhorizontal partitioningnone
Replication methods infoMethods for redundantly storing data on multiple nodesyes infothe nodes on which a table resides can be definedSource-replica replicationMulti-source replication
Source-replica replication
yes, each node contains all data
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataAtomic execution of specific operationsAtomic single-document operationsACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyes infoMVCC basedyesyes
Durability infoSupport for making data persistentyes, using LMDByesyesyes, flexibel persistency by using storage technologies like Apache Kafka, RocksDB or LMDB
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesno
User concepts infoAccess controlAccess rights for users and rolesyes infousers and table-level permissionsfine grained access rights according to SQL-standard

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More resources
HarperDBRethinkDBSAP Adaptive Server infoformer name: Sybase ASEXTDB infoformerly named Crux
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