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DBMS > EJDB vs. MonetDB vs. OpenTSDB vs. Transwarp KunDB

System Properties Comparison EJDB vs. MonetDB vs. OpenTSDB vs. Transwarp KunDB

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Editorial information provided by DB-Engines
NameEJDB  Xexclude from comparisonMonetDB  Xexclude from comparisonOpenTSDB  Xexclude from comparisonTranswarp KunDB  Xexclude from comparison
DescriptionEmbeddable document-store database library with JSON representation of queries (in MongoDB style)A relational database management system that stores data in columnsScalable Time Series DBMS based on HBaseOLTP DBMS based on a distributed architecture and highly compatible with MySQL and Oracle
Primary database modelDocument storeRelational DBMSTime Series DBMSRelational DBMS
Secondary database modelsDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.31
Rank#296  Overall
#44  Document stores
Score1.72
Rank#141  Overall
#64  Relational DBMS
Score1.68
Rank#142  Overall
#12  Time Series DBMS
Score0.14
Rank#341  Overall
#149  Relational DBMS
Websitegithub.com/­Softmotions/­ejdbwww.monetdb.orgopentsdb.netwww.transwarp.cn/­en/­product/­kundb
Technical documentationgithub.com/­Softmotions/­ejdb/­blob/­master/­README.mdwww.monetdb.org/­Documentationopentsdb.net/­docs/­build/­html/­index.html
DeveloperSoftmotionsMonetDB BVcurrently maintained by Yahoo and other contributorsTranswarp
Initial release201220042011
Current releaseDec2023 (11.49), December 2023
License infoCommercial or Open SourceOpen Source infoGPLv2Open Source infoMozilla Public License 2.0Open Source infoLGPLcommercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCCJava
Server operating systemsserver-lessFreeBSD
Linux
OS X
Solaris
Windows
Linux
Windows
Data schemeschema-freeyesschema-freeyes
Typing infopredefined data types such as float or dateyes infostring, integer, double, bool, date, object_idyesnumeric data for metrics, strings for tagsyes
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.no
Secondary indexesnoyesnoyes
SQL infoSupport of SQLnoyes infoSQL 2003 with some extensionsnoyes
APIs and other access methodsin-process shared libraryJDBC
native C library infoMAPI library (MonetDB application programming interface)
ODBC
HTTP API
Telnet API
Supported programming languagesActionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
C
C++
Java
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
Erlang
Go
Java
Python
R
Ruby
Server-side scripts infoStored proceduresnoyes, in SQL, C, Rnoyes
Triggersnoyesnoyes
Partitioning methods infoMethods for storing different data on different nodesnoneSharding via remote tablesSharding infobased on HBasehorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesnonenone infoSource-replica replication available in experimental statusselectable replication factor infobased on HBase
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency infobased on HBaseImmediate Consistency
Foreign keys infoReferential integrityno infotypically not needed, however similar functionality with collection joins possibleyesnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDnoACID
Concurrency infoSupport for concurrent manipulation of datayes infoRead/Write Lockingyesyesyes
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.no
User concepts infoAccess controlnofine grained access rights according to SQL-standardnoyes

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More resources
EJDBMonetDBOpenTSDBTranswarp KunDB
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