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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CMU Databases Systems Carnegie Mellon University Apache Foundation Databases Databases controlled by Apache Software Foundation Cloud Database Systems Systems only available in the cloud

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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 MO Model 204 Entity-Attribute-Value 3