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DBMS > AlaSQL vs. Crux vs. H2 vs. Oracle Rdb

System Properties Comparison AlaSQL vs. Crux vs. H2 vs. Oracle Rdb

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Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonCrux  Xexclude from comparisonH2  Xexclude from comparisonOracle Rdb  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 DBMSRelational DBMS
Secondary database modelsSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.64
Rank#219  Overall
#33  Document stores
#108  Relational DBMS
Score0.04
Rank#328  Overall
#44  Document stores
Score9.72
Rank#47  Overall
#30  Relational DBMS
Score1.24
Rank#156  Overall
#75  Relational DBMS
Websitealasql.orggithub.com/­juxt/­crux
opencrux.com
www.h2database.comwww.oracle.com/­technetwork/­database/­database-technologies/­rdb/­overview/­index.html
Technical documentationgithub.com/­agershun/­alasqlopencrux.com/­reference/­installation.htmlwww.h2database.com/­html/­main.html
DeveloperAndrey Gershun & Mathias R. WulffJuxt Ltd.Thomas MuellerOracle, originally developed by Digital Equipment Corporation (DEC)
Initial release2014201920051984
Current release1.12.1, September 20201.4.200, October 20197.4.1.1, 2021
License infoCommercial or Open SourceOpen Source infoMIT-LicenseOpen Source infoMIT LicenseOpen Source infodual-licence (Mozilla public license, Eclipse public license)commercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
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 VMHP Open VMS
Data schemeschema-freeschema-freeyesFlexible Schema (defined schema, partial schema, schema free)
Typing infopredefined data types such as float or datenoyes, extensible-data-notation formatyesyes
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.nononono
Secondary indexesnoyesyesyes
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.limited SQL, making use of Apache Calciteyesyes
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 methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnoyesyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storageACIDACIDyes, on a single node
Concurrency infoSupport for concurrent manipulation of datayesyes, multi-version concurrency control (MVCC)yes
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 LMDByesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesno
User concepts infoAccess controlnofine grained access rights according to SQL-standard

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More resources
AlaSQLCruxH2Oracle Rdb
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