Radcon Entec <radconen...@yahoo.com> wrote: > I am trying to write a simple applicaton in C# that will remove all > data older than 30 days from an SQLite table. However, my application > is removing all data, not just the old data. > > Before I run my query, the value_timestamp field of my table contains: > > 2009-05-07 17:00:43 > > My query is: > > delete from trend_data where datetime(value_timestamp) < '4/7/2009 > 12:37:32 PM'
Realize that SQLite doesn't have a dedicated type for dates or times. '4/7/2009 12:37:32 PM' is simply a string literal, and your query performs the usual string comparison. Since '2' is less than '4', all dates in your table satisfy the condition. Now, if you represent your cut-off date as '2009-04-07 12:37:32' then string comparison would correctly order timestamps, too. Igor Tandetnik _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
