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DBMS > AlaSQL vs. H2GIS vs. Microsoft Azure SQL Database vs. Realm vs. Sequoiadb

System Properties Comparison AlaSQL vs. H2GIS vs. Microsoft Azure SQL Database vs. Realm vs. Sequoiadb

Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonH2GIS  Xexclude from comparisonMicrosoft Azure SQL Database infoformerly SQL Azure  Xexclude from comparisonRealm  Xexclude from comparisonSequoiadb  Xexclude from comparison
DescriptionJavaScript DBMS librarySpatial extension of H2Database as a Service offering with high compatibility to Microsoft SQL ServerA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core DataNewSQL database with distributed OLTP and SQL
Primary database modelDocument store
Relational DBMS
Spatial DBMSRelational DBMSDocument storeDocument store
Relational DBMS
Secondary database modelsRelational 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
Score0.08
Rank#368  Overall
#7  Spatial DBMS
Score76.78
Rank#16  Overall
#11  Relational DBMS
Score7.41
Rank#52  Overall
#8  Document stores
Score0.50
Rank#258  Overall
#41  Document stores
#120  Relational DBMS
Websitealasql.orgwww.h2gis.orgazure.microsoft.com/­en-us/­products/­azure-sql/­databaserealm.iowww.sequoiadb.com
Technical documentationgithub.com/­AlaSQL/­alasqlwww.h2gis.org/­docs/­homedocs.microsoft.com/­en-us/­azure/­azure-sqlrealm.io/­docswww.sequoiadb.com/­en/­index.php?m=Files&a=index
DeveloperAndrey Gershun & Mathias R. WulffCNRSMicrosoftRealm, acquired by MongoDB in May 2019Sequoiadb Ltd.
Initial release20142013201020142013
Current releaseV12
License infoCommercial or Open SourceOpen Source infoMIT-LicenseOpen Source infoLGPL 3.0commercialOpen SourceOpen Source infoServer: AGPL; Client: Apache V2
Cloud-based only infoOnly available as a cloud servicenonoyesnono
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)hostedAndroid
Backend: server-less
iOS
Windows
Linux
Data schemeschema-freeyesyesyesschema-free
Typing infopredefined data types such as float or datenoyesyesyesyes infooid, date, timestamp, binary, regex
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.nonoyesnono
Secondary indexesnoyesyesyesyes
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.yesyesnoSQL-like query language
APIs and other access methodsJavaScript APIADO.NET
JDBC
ODBC
proprietary protocol using JSON
Supported programming languagesJavaScriptJava.Net
C#
Java
JavaScript (Node.js)
PHP
Python
Ruby
.Net
Java infowith Android only
Objective-C
React Native
Swift
.Net
C++
Java
PHP
Python
Server-side scripts infoStored proceduresnoyes infobased on H2Transact SQLno inforuns within the applications so server-side scripts are unnecessaryJavaScript
Triggersyesyesyesyes infoChange Listenersno
Partitioning methods infoMethods for storing different data on different nodesnonenonenoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyes infobased on H2yes, with always 3 replicas availablenoneSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyEventual Consistency
Foreign keys infoReferential integrityyesyesyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storageACIDACIDACIDDocument is locked during a transaction
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 FileStorageyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyes infoIn-Memory realmno
User concepts infoAccess controlnoyes infobased on H2fine grained access rights according to SQL-standardyessimple password-based access control

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More resources
AlaSQLH2GISMicrosoft Azure SQL Database infoformerly SQL AzureRealmSequoiadb
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