On Wed, Sep 29, 2010 at 6:16 PM, Petite Abeille <petite.abei...@gmail.com> wrote: > > On Sep 29, 2010, at 7:05 PM, Simon Slavin wrote: > >> SQL (not just SQLite) is traditionally terribly bad at doing matrix >> inversions. What do you want to use the wide short table for ? Does it >> really need to exist as a table ? > > Just for fun (and profit): > > http://www.orafaq.com/wiki/PIVOT > http://www.orafaq.com/wiki/UNPIVOT
Ah, this is a pivot!!! Doh. And this [1] recipe shows how you can do it in SQLite. Thanks [1] http://softwaresalariman.blogspot.com/2008/05/pivot-table-hack-in-sqlite3-and-mysql.html I wonder if this is also more efficient.... To Simon, yes, we do *really* need the short wide structure but it doesn't necessarily have to be a table (i.e. could be a view). We do need it to be a database object though because a subsequent step of the process queries it. _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
