Students in BTR490 are working on analyzing historical Bugzilla data for Mozilla. This pages documents some of their findings and ideas.
Bugzilla Database Questions
By:Timothy Kwan, Rajiv Gagwani, Jasdeep Singh Goraya
| Questions | Query | Result |
|---|---|---|
| How many bugs are there? | Select count(bug_id) from bugs; | 425,992 |
| How many bugs per year? | ||
| 1994 | Select count(distinct bug_id) from bugs where creation_ts like '1994%'; | 2 |
| 1995 | Select count(distinct bug_id) from bugs where creation_ts like '1995%'; | 1 |
| 1996 | Select count(distinct bug_id) from bugs where creation_ts like '1996%'; | 5 |
| 1997 | Select count(distinct bug_id) from bugs where creation_ts like '1997%'; | 36 |
| 1998 | Select count(distinct bug_id) from bugs where creation_ts like '1998%'; | 2020 |
| 1999 | Select count(distinct bug_id) from bugs where creation_ts like '1999%'; | 20,411 |
| 2000 | Select count(distinct bug_id) from bugs where creation_ts like '2000%'; | 40298 |
| 2001 | Select count(distinct bug_id) from bugs where creation_ts like '2001%'; | 2 |
| 2002 | Select count(distinct bug_id) from bugs where creation_ts like '2002%'; | 2 |
| 2003 | Select count(distinct bug_id) from bugs where creation_ts like '2003%'; | 2 |
| 2004 | Select count(distinct bug_id) from bugs where creation_ts like '2004%'; | 2 |
| 2005 | Select count(distinct bug_id) from bugs where creation_ts like '2005%'; | 2 |
| 2006 | Select count(distinct bug_id) from bugs where creation_ts like '2006%'; | 2 |
| 2007 | Select count(distinct bug_id) from bugs where creation_ts like '2007%'; | 2 |
| 2008 | Select count(distinct bug_id) from bugs where creation_ts like '2008%'; | 2 |