Databases

See also Serialization for methods of storing, exporting, importing, and transferring structured data.

Classes of databases:

CODASYL databases

 * DBMS32 (DEC)
 * DMS1100 (Univac)
 * IDS/2 (Honeywell)
 * IDMS (Cullinet, and later Computer Associates)

General databases

 * BigTable (Google internal database)
 * DBF
 * dBase II
 * dBase III
 * LevelDB
 * Mork
 * PC-FILE
 * QDB (Robert R. Marsh)

Hierarchical databases

 * IMS

ISAM (Indexed Sequential Access Method)

 * Ability Database (.adb)
 * Access (was also known as Jet)
 * Extensible Storage Engine (ESE, EDB)
 * Paradox (database)

Multiformat platforms/programs/libraries/utilities

 * Dat

NoSQL databases

 * CouchDB
 * DynamoDB (AWS cloud database)
 * Elliptics
 * MongoDB
 * Clusterpoint

Object-oriented databases

 * Cache
 * db40
 * Gemstone
 * Objectivity
 * ObjectStore
 * Versant

Relational databases

 * Athena (AWS)
 * Cornerstone (Infocom)
 * Derby
 * FileMaker Pro
 * HSQLDB
 * IBM DB2
 * Ingres
 * MariaDB
 * MariaDB error codes
 * MemSQL
 * MySQL
 * MySQL error codes‎
 * Oracle
 * ARC (database backup format)
 * Oracle database error messages
 * PostGRESQL
 * SIARD
 * SQL Anywhere
 * SQLite
 * SQLite result codes
 * Virtuoso
 * Watcom SQL

Triplestores

 * 3store
 * Apache Jena
 * Mulgara

XML databases

 * BaseX
 * Documentum xDB
 * eXist-db
 * MarkLogic
 * Oracle XML DB
 * Qizx
 * Sedna
 * Tamino
 * TEXTML
 * TigerLogic XDMS
 * Xpriori XMS
 * XQuantum

Database programming/query languages

 * Clipper (programming language)
 * dBase programming language
 * Fauna Query Language (FQL)
 * FoxPro programming language
 * SPARQL
 * SQL

Encrypted databases

 * KBDX

Timeseries

 * RRD, round-robin database
 * Whisper, used by graphite

Cloud/network/API databases

 * FaunaDB
 * Wikibase (back end of Wikidata project from Wikimedia)

Uncategorized

 * Apache Parquet
 * DeskMate Filer (.fil)
 * Folio Infobase (.nfo)
 * Info File FLR (.flr)
 * GNU Recutils
 * Microsoft Works Database
 * TDB (Samba)
 * Tabular Data Package

Conversion software

 * Embulk

Links

 * Frictionless data
 * Open Data Research Network
 * Don't use Hadoop - your data isn't that big
 * Why Proprietary Big Data Technologies Have No Hope Of Competing With Hadoop
 * Social networks stick with MySQL
 * From Punched Cards to "Big Data": A Social History of Database Populism
 * If you move your mouse continually the query may not fail. Do not stop moving (that's Microsoft for you)
 * Who's to blame for 'Daughter Killed in Car Crash' mailing sent to parents? Big Data.
 * Big data: are we making a big mistake?
 * Big data analysis to see what's missing from the national archives
 * Terabyte index, search and faceting with Solr
 * Library of Congress Recommended Format Specifications: Datasets
 * dataset: databases for lazy people (Python module)
 * IBM Hadoop info
 * Database Preservation Toolkit
 * Gay marriage: the database engineering perspective