Differences between revisions 68 and 69
Revision 68 as of 2015-01-02 12:21:00
Size: 5204
Editor: ?ansgar
Comment:
Revision 69 as of 2015-02-26 03:05:25
Size: 5343
Editor: PaulWise
Comment: add UDD public mirror
Deletions are marked like this. Additions are marked like this.
Line 13: Line 13:
 * UDD-based services:  * UDD related services:
Line 19: Line 19:
  * [[http://public-udd-mirror.xvm.mit.edu/|public UDD mirror]] allows anyone to query UDD using PostgreSQL command-line or GUI clients

Translation(s): English - Italiano


Ultimate Debian Database (UDD) gathers a lot of data about various aspects of Debian in the same SQL database. It allows users to easily access and combine all these data.

Data currently being imported include: Packages and Sources files, from Debian and Ubuntu, Bugs from the Debian BTS, Popularity contest, History of uploads, History of migrations to testing, Lintian, Orphaned packages, Carnivore, Debtags, Ubuntu bugs (from Launchpad), Packages in NEW queue, DDTP translations.

For more information, please contact us on #debian-qa or debian-qa@lists.debian.org (mailing list subscription and archives).

Connecting to and using UDD

udd.debian.org is running on ullmann.debian.org. It accepts direct SSLed connections from quantz (qa) and moszumanska (alioth).

  • command-line:
    • psql service=udd

    • or: psql -U guest -h udd.debian.org -p 5452 udd

  • Python:

    import psycopg2
    conn = psycopg2.connect("service=udd")
    cursor = conn.cursor()
    cursor.execute("SELECT count(*) from sources where release='sid'")
    print cursor.fetchall()[0][0]
  • Ruby (DBI): require 'dbi' ; dbh = DBI::connect('DBI:Pg:dbname=udd;port=5452;host=udd.debian.org', 'guest') 

  • Ruby (PG): require 'pg'; conn = PG.connect({:host => 'udd.debian.org', :port => 5452, :user => 'guest', :dbname => 'udd'}) 

If you want to know precisely when a specific data source is updated, you can take a look at the crontab file. The timestamps table can tell you when a data source was last updated.

Improving UDD

If you want to help improve UDD, you can set up your own instance as described on UltimateDebianDatabase/Hacking. You can report bugs against the qa.debian.org pseudo-package, using the udd usertag and user qa.debian.org@packages.debian.org. (list of bugs)

Credits

UDD started as a Google Summer of Code project by Christian von Essen (Neronus), co-mentored by Lucas Nussbaum, Stefano Zacchiroli and Marc 'HE' Brockschmidt. It is now mainly maintained by Lucas Nussbaum, with help from others.

Other resources

See also :

References

Even if its main goal was not to serve as a scientific resarch tool, UDD was already featured in two publications:

SubPages