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DBMS > DolphinDB vs. mSQL vs. Postgres-XL vs. searchxml vs. SwayDB

System Properties Comparison DolphinDB vs. mSQL vs. Postgres-XL vs. searchxml vs. SwayDB

Editorial information provided by DB-Engines
NameDolphinDB  Xexclude from comparisonmSQL infoMini SQL  Xexclude from comparisonPostgres-XL  Xexclude from comparisonsearchxml  Xexclude from comparisonSwayDB  Xexclude from comparison
DescriptionDolphinDB is a high performance Time Series DBMS. It is integrated with an easy-to-use fully featured programming language and a high-volume high-velocity streaming analytics system. It offers operational simplicity, scalability, fault tolerance, and concurrency.mSQL (Mini SQL) is a simple and lightweight RDBMSBased on PostgreSQL enhanced with MPP and write-scale-out cluster featuresDBMS for structured and unstructured content wrapped with an application serverAn embeddable, non-blocking, type-safe key-value store for single or multiple disks and in-memory storage
Primary database modelTime Series DBMS
Vector DBMS
Relational DBMSRelational DBMSNative XML DBMS
Search engine
Key-value store
Secondary database modelsRelational DBMSDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.60
Rank#102  Overall
#8  Time Series DBMS
#6  Vector DBMS
Score1.27
Rank#160  Overall
#73  Relational DBMS
Score0.41
Rank#261  Overall
#122  Relational DBMS
Score0.00
Rank#386  Overall
#7  Native XML DBMS
#25  Search engines
Score0.00
Rank#385  Overall
#60  Key-value stores
Websitewww.dolphindb.comhughestech.com.au/­products/­msqlwww.postgres-xl.orgwww.searchxml.net/­category/­productsswaydb.simer.au
Technical documentationdocs.dolphindb.cn/­en/­help200/­index.htmlwww.postgres-xl.org/­documentationwww.searchxml.net/­support/­handouts
DeveloperDolphinDB, IncHughes Technologiesinformationpartners gmbhSimer Plaha
Initial release201819942014 infosince 2012, originally named StormDB20152018
Current releasev2.00.4, January 20224.4, October 202110 R1, October 20181.0
License infoCommercial or Open Sourcecommercial infofree community version availablecommercial infofree licenses can be providedOpen Source infoMozilla public licensecommercialOpen Source infoGNU Affero GPL V3.0
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++CCC++Scala
Server operating systemsLinux
Windows
AIX
HP-UX
Linux
OS X
Solaris SPARC/x86
Windows
Linux
macOS
Windows
Data schemeyesyesyesschema-freeschema-free
Typing infopredefined data types such as float or dateyesyesyesyesno
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.nonoyes infoXML type, but no XML query functionalityyesno
Secondary indexesyesyesyesyesno
SQL infoSupport of SQLSQL-like query languageA subset of ANSI SQL is implemented infono subqueries, aggregate functions, views, foreign keys, triggersyes infodistributed, parallel query executionnono
APIs and other access methodsJDBC
JSON over HTTP
Kafka
MQTT (Message Queue Telemetry Transport)
ODBC
OPC DA
OPC UA
RabbitMQ
WebSocket
JDBC
ODBC
ADO.NET
JDBC
native C library
ODBC
streaming API for large objects
RESTful HTTP API
WebDAV
XQuery
XSLT
Supported programming languagesC#
C++
Go
Java
JavaScript
MatLab
Python
R
Rust
C
C++
Delphi
Java
Perl
PHP
Tcl
.Net
C
C++
Delphi
Erlang
Java
JavaScript (Node.js)
Perl
PHP
Python
Tcl
C++ infomost other programming languages supported via APIsJava
Kotlin
Scala
Server-side scripts infoStored proceduresyesnouser defined functionsyes infoon the application serverno
Triggersnonoyesnono
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioningnonehorizontal partitioningnonenone
Replication methods infoMethods for redundantly storing data on multiple nodesyesnoneyes infosychronisation to multiple collectionsnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencynoneImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesnoACID infoMVCCmultiple readers, single writerAtomic execution of operations
Concurrency infoSupport for concurrent manipulation of datayesnoyesyesyes
Durability infoSupport for making data persistentyesyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnononoyes
User concepts infoAccess controlAdministrators, Users, Groupsnofine grained access rights according to SQL-standardDomain, group and role-based access control at the document level and for application servicesno

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More resources
DolphinDBmSQL infoMini SQLPostgres-XLsearchxmlSwayDB
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