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DBMS > mSQL vs. STSdb vs. XTDB vs. Yaacomo

System Properties Comparison mSQL vs. STSdb vs. XTDB vs. Yaacomo

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Editorial information provided by DB-Engines
NamemSQL infoMini SQL  Xexclude from comparisonSTSdb  Xexclude from comparisonXTDB infoformerly named Crux  Xexclude from comparisonYaacomo  Xexclude from comparison
Yaacomo seems to be discontinued and is removed from the DB-Engines ranking
DescriptionmSQL (Mini SQL) is a simple and lightweight RDBMSKey-Value Store with special method for indexing infooptimized for high performance using a special indexing methodA general purpose database with bitemporal SQL and Datalog and graph queriesOpenCL based in-memory RDBMS, designed for efficiently utilizing the hardware via parallel computing
Primary database modelRelational DBMSKey-value storeDocument storeRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.27
Rank#169  Overall
#76  Relational DBMS
Score0.10
Rank#357  Overall
#51  Key-value stores
Score0.18
Rank#332  Overall
#46  Document stores
Websitehughestech.com.au/­products/­msqlgithub.com/­STSSoft/­STSdb4github.com/­xtdb/­xtdb
www.xtdb.com
yaacomo.com
Technical documentationwww.xtdb.com/­docs
DeveloperHughes TechnologiesSTS Soft SCJuxt Ltd.Q2WEB GmbH
Initial release1994201120192009
Current release4.4, October 20214.0.8, September 20151.19, September 2021
License infoCommercial or Open Sourcecommercial infofree licenses can be providedOpen Source infoGPLv2, commercial license availableOpen Source infoMIT Licensecommercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCC#Clojure
Server operating systemsAIX
HP-UX
Linux
OS X
Solaris SPARC/x86
Windows
WindowsAll OS with a Java 8 (and higher) VM
Linux
Android
Linux
Windows
Data schemeyesyesschema-freeyes
Typing infopredefined data types such as float or dateyesyes infoprimitive types and user defined types (classes)yes, extensible-data-notation formatyes
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.nonono
Secondary indexesyesnoyesyes
SQL infoSupport of SQLA subset of ANSI SQL is implemented infono subqueries, aggregate functions, views, foreign keys, triggersnolimited SQL, making use of Apache Calciteyes
APIs and other access methodsJDBC
ODBC
.NET Client APIHTTP REST
JDBC
JDBC
ODBC
Supported programming languagesC
C++
Delphi
Java
Perl
PHP
Tcl
C#
Java
Clojure
Java
Server-side scripts infoStored proceduresnonono
Triggersnononoyes
Partitioning methods infoMethods for storing different data on different nodesnonenonenonehorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesnonenoneyes, each node contains all dataSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate Consistency
Foreign keys infoReferential integritynononoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACIDACID
Concurrency infoSupport for concurrent manipulation of datanoyesyesyes
Durability infoSupport for making data persistentyesyesyes, flexibel persistency by using storage technologies like Apache Kafka, RocksDB or LMDByes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes
User concepts infoAccess controlnonofine grained access rights according to SQL-standard

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More resources
mSQL infoMini SQLSTSdbXTDB infoformerly named CruxYaacomo
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