Linked Open Data for Database Formats

Databases are structured information that is accessed and updated through a database management system that has been organized, structured, and stored so that it can be manipulated, searched, and extracted for various purposes.

The significant properties of databases are documented in a Databases Preservation Plan, which can be used as test criteria for tools and processes used in format transformations.

NARA makes its Linked Open Data available in the Resource Description Framework Terse RDF Triple Language, or RDF Turtle (.ttl files). These files can be opened in any text editor. The Digital Preservation Framework as Linked Open Data includes the same elements as are available in the version of the Preservation Plans on GitHub.

These Plans are not exhaustive nor universally applicable proposed actions and recommended or endorsed tools: these represent file formats and variant versions in NARA holdings, the current NARA risk assessment, processing capabilities, and tools in use at NARA.


Format Name File Extension(s) Digital Preservation Framework Category/Categories NARA Format ID NARA Linked Open Data TTL
BSON bson Databases NF00594
Btrieve 5.1 btr Databases NF00137
Btrieve 6.0 btr Databases NF00541
Btrieve 6.1 btr Databases NF00542
CouchDB json Databases NF00550
db file: Paradox; Oracle; dBASE IV; dbvista; dBFast; XTreeGold; XoftSpySE db Databases NF00152
dBase Index File ndx|mdx Databases NF00154
dBASE or FoxBASE+Text Memo dbt Databases NF00155
dBase Table for Windows 5 dbf Databases NF00551
dBase Table II dbf|db2 Databases NF00153
dBase Table III dbf|db3 Databases NF00552
dBase Table III+ dbf Databases NF00553
dBase Table IV dbf Databases NF00554
dBase Table unspecified version dbf Databases NF00784
dBase Table V dbf Databases NF00555
FileMakerPro 7 fp7 Databases NF00192
FoxPro 2.0 dbf Databases NF00194
FoxPro 2.5 dbf Databases NF00564
FoxPro 2.6 dbf Databases NF00565
FoxPro Memo fpt Databases NF00275
FoxPro Report frx Databases NF00663
Framework Database II fw2|fw Databases NF00197
iCalendar ics|ical|ifb|icalendar Databases|Calendars NF00209
Lotus Approach 97 Database View File apr Databases NF00234
Lotus Approach Database View File apt Databases NF00579
Lotus Notes Database 2 nsf|ns2 Databases NF00237
Lotus Notes Database 3 nsf|ns3 Databases NF00238
Lotus Notes Database 4 nsf|ns4 Databases NF00239
Lotus Notes Database unspecified version nsf Databases NF00785
MarkLogic json|rdf Databases NF00581
Microsoft Access (.accdb) unspecified version accdb Databases NF00835
Microsoft Access (.mdb) unspecified version mdb Databases NF00834
Microsoft Access 2 mdb Databases NF00498
Microsoft Access 2000 mdb Databases NF00253
Microsoft Access 2002 mdb Databases NF00256
Microsoft Access 2007 mdb|accdb Databases NF00254
Microsoft Access 2010 accdb Databases NF00494
Microsoft Access 2013 accdb Databases NF00495
Microsoft Access 2016 accdb Databases NF00496
Microsoft Access 2019 accdb Databases NF00497
Microsoft Access 95 mdb Databases NF00499
Microsoft Access 97 mdb Databases NF00255
Microsoft Schedule+ Contacts scd Databases|Calendars NF00404
Microsoft Visual FoxPro database container dbc|dct|dcx Databases NF00586
Microsoft Works Database for DOS 1.05 wdb Databases NF00315
Microsoft Works Database for DOS 1.12 wdb Databases NF00316
Microsoft Works Database for DOS 2.0 wdb Databases NF00317
Microsoft Works Database for DOS 3 wdb Databases NF00318
Microsoft Works Database for DOS 3a wdb Databases NF00319
Microsoft Works Database for DOS 3b wdb Databases NF00320
Microsoft Works Database for Macintosh 3 wdb Databases NF00321
Microsoft Works Database for Macintosh 4 wdb Databases NF00322
Microsoft Works Database for Windows 2.0 wdb Databases NF00323
Microsoft Works Database for Windows 2.0a wdb Databases NF00324
Microsoft Works Database for Windows 2000 wdb Databases NF00325
Microsoft Works Database for Windows 3.0 wdb Databases NF00326
Microsoft Works Database for Windows 3.0a wdb Databases NF00327
Microsoft Works Database for Windows 3.0b wdb Databases NF00328
Microsoft Works Database for Windows 4 wdb Databases NF00329
Microsoft Works Database for Windows 4.0a wdb Databases NF00330
Microsoft Works Database for Windows 4.5 wdb Databases NF00331
Microsoft Works Database for Windows 4.5a wdb Databases NF00332
MySQL Form Definition frm Databases NF00340
MySQL InnoDB Database ibd Databases NF00598
MySQL MyISAM Database myd|myi Databases NF00599
SAS Data File ssd Databases NF00399
SAS for MS-DOS Database ssd Databases NF00400
SAS Transport File Format (xport) 5 xpt Databases NF00615
SAS Transport File Format (xport) for Windows 8.x xpt Databases NF00616
SAS Transport File Format (xport) for Windows 9.1 xpt Databases NF00617
SIARD 1.0 siard Databases NF00406
SIARD 2.0 siard Databases NF00618
SIARD 2.1 siard Databases NF00619
SIARD 2.2 siard Databases NF00797
vCalendar Electronic Calendaring and Scheduling Exchange Format vc|vcs Databases NF00620
vCard vcf|vcard Databases NF00432
VisiCalc vc|vcs Databases|Spreadsheets NF00435
Visual FoxPro Database Table File 5 dbf Databases NF00622