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DBMS > AlaSQL vs. chDB vs. NSDb vs. SpaceTime

System Properties Comparison AlaSQL vs. chDB vs. NSDb vs. SpaceTime

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Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonchDB  Xexclude from comparisonNSDb  Xexclude from comparisonSpaceTime  Xexclude from comparison
DescriptionJavaScript DBMS libraryAn embedded SQL OLAP Engine powered by ClickHouseScalable, High-performance Time Series DBMS designed for Real-time Analytics on top of KubernetesSpaceTime is a spatio-temporal DBMS with a focus on performance.
Primary database modelDocument store
Relational DBMS
Relational DBMSTime Series DBMSSpatial DBMS
Secondary database modelsTime Series DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.51
Rank#256  Overall
#40  Document stores
#118  Relational DBMS
Score0.07
Rank#376  Overall
#158  Relational DBMS
Score0.08
Rank#369  Overall
#40  Time Series DBMS
Score0.03
Rank#392  Overall
#8  Spatial DBMS
Websitealasql.orggithub.com/­chdb-io/­chdbnsdb.iowww.mireo.com/­spacetime
Technical documentationgithub.com/­AlaSQL/­alasqldoc.chdb.ionsdb.io/­Architecture
DeveloperAndrey Gershun & Mathias R. WulffMireo
Initial release2014202320172020
License infoCommercial or Open SourceOpen Source infoMIT-LicenseOpen Source infoApache Version 2.0Open Source infoApache Version 2.0commercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptJava, ScalaC++
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)server-lessLinux
macOS
Linux
Data schemeschema-freeyes
Typing infopredefined data types such as float or datenoyes: int, bigint, decimal, stringyes
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 indexesnoall fields are automatically indexedno
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.Close to ANSI SQL (SQL/JSON + extensions)SQL-like query languageA subset of ANSI SQL is implemented
APIs and other access methodsJavaScript APIgRPC
HTTP REST
WebSocket
RESTful HTTP API
Supported programming languagesJavaScriptBun
C
C++
Go
JavaScript (Node.js)
Python
Rust
Java
Scala
C#
C++
Python
Server-side scripts infoStored proceduresnonono
Triggersyesno
Partitioning methods infoMethods for storing different data on different nodesnoneShardingFixed-grid hypercubes
Replication methods infoMethods for redundantly storing data on multiple nodesnoneReal-time block device replication (DRBD)
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneEventual ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storagenono
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyes infoby using IndexedDB, SQL.JS or proprietary FileStorageUsing Apache Luceneyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesno
User concepts infoAccess controlnoyes

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More resources
AlaSQLchDBNSDbSpaceTime
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