DBDB.io The Encyclopedia of Database Systems · Est. 2017
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Database of Databases

A curated reference guide for implementations of the world's most important type of software.

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NoSQL Database Systems They Hated SQL Until They Loved It Obscure Programming Languages Systems Writtens In Uncommon Languages Public Domain Databases Systems Not Controlled By Any License

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14 Models
Relational 490 Key-Value 254 Document / XML 220 Graph 97 Object-Oriented 64 Vector 58 Triplestore / RDF 28 Column Family / Wide-Column 28 Array / Matrix 22 Network 10 Hierarchical 8 Multi-Value 7 Entity-Relationship 4 Entity-Attribute-Value 2

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Solr
Solr

Solr

Document / XML Database System

Solr is an open source NoSQL enterprise search platform built on Apache Lucene. Supporting distributed search and index replication, Solr is highly reliable, scalable and fault tolerant. It runs as a…

Since 2004 AI-Assisted Apache v2
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AsaDB AsaDB Relational 4 HydraDB HydraDB Graph 4 CamusDB CamusDB Key-Value · Relational 3 JabrDB JabrDB Document / XML · Graph · Relational 3 RetractorDB RetractorDB Relational 3