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DBMS > AlaSQL vs. Crux vs. H2

System Properties Comparison AlaSQL vs. Crux vs. H2

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Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonCrux  Xexclude from comparisonH2  Xexclude from comparison
DescriptionJavaScript DBMS libraryCrux is a general purpose database with bitemporal SQL and Datalog and graph queriesFull-featured RDBMS with a small footprint, either embedded into a Java application or used as a database server.
Primary database modelDocument store
Relational DBMS
Document storeRelational DBMS
Secondary database modelsSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.71
Rank#211  Overall
#32  Document stores
#106  Relational DBMS
Score0.12
Rank#312  Overall
#41  Document stores
Score9.31
Rank#49  Overall
#30  Relational DBMS
Websitealasql.orggithub.com/­juxt/­crux
opencrux.com
www.h2database.com
Technical documentationgithub.com/­agershun/­alasqlopencrux.com/­reference/­installation.htmlwww.h2database.com/­html/­main.html
DeveloperAndrey Gershun & Mathias R. WulffJuxt Ltd.Thomas Mueller
Initial release201420192005
Current release1.12.1, September 20201.4.200, October 2019
License infoCommercial or Open SourceOpen Source infoMIT-LicenseOpen Source infoMIT LicenseOpen Source infodual-licence (Mozilla public license, Eclipse public license)
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptClojureJava
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)All OS with a Java 8 (and higher) VM
Linux
All OS with a Java VM
Data schemeschema-freeschema-freeyes
Typing infopredefined data types such as float or datenoyes, 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 indexesnoyesyes
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.limited SQL, making use of Apache Calciteyes
APIs and other access methodsJavaScript APIHTTP REST
JDBC
JDBC
ODBC
Supported programming languagesJavaScriptClojure
Java
Java
Server-side scripts infoStored proceduresnonoJava Stored Procedures and User-Defined Functions
Triggersyesnoyes
Partitioning methods infoMethods for storing different data on different nodesnonenonenone
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyes, each node contains all dataWith clustering: 2 database servers on different computers operate on identical copies of a database
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate Consistency
Foreign keys infoReferential integrityyesnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storageACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyes, multi-version concurrency control (MVCC)
Durability infoSupport for making data persistentyes infoby using IndexedDB, SQL.JS or proprietary FileStorageyes, 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.yesyes
User concepts infoAccess controlnofine grained access rights according to SQL-standard

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AlaSQLCruxH2
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