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DBMS > AlaSQL vs. chDB vs. H2GIS vs. Microsoft Azure SQL Database vs. VelocityDB

System Properties Comparison AlaSQL vs. chDB vs. H2GIS vs. Microsoft Azure SQL Database vs. VelocityDB

Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonchDB  Xexclude from comparisonH2GIS  Xexclude from comparisonMicrosoft Azure SQL Database infoformerly SQL Azure  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionJavaScript DBMS libraryAn embedded SQL OLAP Engine powered by ClickHouseSpatial extension of H2Database as a Service offering with high compatibility to Microsoft SQL ServerA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelDocument store
Relational DBMS
Relational DBMSSpatial DBMSRelational DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsTime Series DBMSRelational DBMSDocument store
Graph DBMS
Spatial 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#368  Overall
#7  Spatial DBMS
Score76.78
Rank#16  Overall
#11  Relational DBMS
Score0.11
Rank#354  Overall
#37  Graph DBMS
#15  Object oriented DBMS
Websitealasql.orggithub.com/­chdb-io/­chdbwww.h2gis.orgazure.microsoft.com/­en-us/­products/­azure-sql/­databasevelocitydb.com
Technical documentationgithub.com/­AlaSQL/­alasqldoc.chdb.iowww.h2gis.org/­docs/­homedocs.microsoft.com/­en-us/­azure/­azure-sqlvelocitydb.com/­UserGuide
DeveloperAndrey Gershun & Mathias R. WulffCNRSMicrosoftVelocityDB Inc
Initial release20142023201320102011
Current releaseV127.x
License infoCommercial or Open SourceOpen Source infoMIT-LicenseOpen Source infoApache Version 2.0Open Source infoLGPL 3.0commercialcommercial
Cloud-based only infoOnly available as a cloud servicenononoyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaScriptJavaC++C#
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)server-lesshostedAny that supports .NET
Data schemeschema-freeyesyesyes
Typing infopredefined data types such as float or datenoyesyesyes
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.nonoyesno
Secondary indexesnoyesyesyes
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.Close to ANSI SQL (SQL/JSON + extensions)yesyesno
APIs and other access methodsJavaScript APIADO.NET
JDBC
ODBC
.Net
Supported programming languagesJavaScriptBun
C
C++
Go
JavaScript (Node.js)
Python
Rust
Java.Net
C#
Java
JavaScript (Node.js)
PHP
Python
Ruby
.Net
Server-side scripts infoStored proceduresnoyes infobased on H2Transact SQLno
TriggersyesyesyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesnonenoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyes infobased on H2yes, with always 3 replicas available
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesyesyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storageACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayes, multi-version concurrency control (MVCC)yesyes
Durability infoSupport for making data persistentyes infoby using IndexedDB, SQL.JS or proprietary FileStorageyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyes
User concepts infoAccess controlnoyes infobased on H2fine grained access rights according to SQL-standardBased on Windows Authentication

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More resources
AlaSQLchDBH2GISMicrosoft Azure SQL Database infoformerly SQL AzureVelocityDB
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