Databases

File Format
Name	Databases
Ontology	Electronic File Formats 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
• h2database
• 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
• PRQL
• 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
• AskSam (.ask)
• DeskMate Filer (.fil)
• Folio Infobase (.nfo)
• Info File FLR (.flr)
• GNU Recutils [1]
• 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