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DBMS > Apache Solr vs. HyperSQL vs. Transwarp KunDB

System Properties Comparison Apache Solr vs. HyperSQL vs. Transwarp KunDB

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Editorial information provided by DB-Engines
NameApache Solr  Xexclude from comparisonHyperSQL infoalso known as HSQLDB  Xexclude from comparisonTranswarp KunDB  Xexclude from comparison
DescriptionA widely used distributed, scalable search engine based on Apache LuceneMultithreaded, transactional RDBMS written in Java infoalso known as HSQLDBOLTP DBMS based on a distributed architecture and highly compatible with MySQL and Oracle
Primary database modelSearch engineRelational DBMSRelational DBMS
Secondary database modelsSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score32.40
Rank#24  Overall
#3  Search engines
Score2.70
Rank#92  Overall
#49  Relational DBMS
Score0.00
Rank#382  Overall
#155  Relational DBMS
Websitesolr.apache.orghsqldb.orgwww.transwarp.cn/­en/­product/­kundb
Technical documentationsolr.apache.org/­resources.htmlhsqldb.org/­web/­hsqlDocsFrame.html
DeveloperApache Software FoundationTranswarp
Initial release20062001
Current release9.6.1, May 20242.7.2, June 2023
License infoCommercial or Open SourceOpen Source infoApache Version 2Open Source infobased on BSD licensecommercial
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaJava
Server operating systemsAll OS with a Java VM inforuns as a servlet in servlet container (e.g. Tomcat, Jetty is included)All OS with a Java VM infoEmbedded (into Java applications) and Client-Server operating modes
Data schemeyes infoDynamic Fields enables on-the-fly addition of new fieldsyesyes
Typing infopredefined data types such as float or dateyes infosupports customizable data types and automatic typingyesyes
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.yesno
Secondary indexesyes infoAll search fields are automatically indexedyesyes
SQL infoSupport of SQLSolr Parallel SQL Interfaceyesyes
APIs and other access methodsJava API
RESTful HTTP/JSON API
HTTP API infoJDBC via HTTP
JDBC
ODBC
Supported programming languages.Net
Erlang
Java
JavaScript
any language that supports sockets and either XML or JSON
Perl
PHP
Python
Ruby
Scala
All languages supporting JDBC/ODBC
Java
Server-side scripts infoStored proceduresJava pluginsJava, SQLyes
Triggersyes infoUser configurable commands triggered on index changesyesyes
Partitioning methods infoMethods for storing different data on different nodesShardingnonehorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesyesnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsspark-solr: github.com/­lucidworks/­spark-solr and streaming expressions to reducenono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataoptimistic lockingACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlyesfine grained access rights according to SQL-standardyes

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More resources
Apache SolrHyperSQL infoalso known as HSQLDBTranswarp KunDB
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