On 11 Oct 2010, at 10:26am, Michele Pradella wrote: > Soft delete could increase the SELECT speed because you have to check > always for the "deleted" column. > Moreover the DB will grow up without limit if no one physically delete > the records: anyway UPDATE of a lot of records could be expensive too. > I think the only way is to DELETE more frequently less records.
I recommend that you try it. At least in the command-line application if not in your own code. Deleting a record is very expensive in terms of time and resources. Changing a field from a 1 to a 0 is far cheaper and faster, even if it's in an index or two. You can have a regular task that runs at 4am that deletes all the records with a 0 in. That bit is easy. Simon. _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
