Thanks Igor, What are the pros and cons of this approach vs. using a temporal table as suggested by Keith?
Best regards, Luis On Sun, Jul 15, 2012 at 06:50:44PM -0400, Igor Tandetnik wrote: > Luis Mochan <moc...@fis.unam.mx> wrote: > > I want to reorder a table and then group and average it's values. I > > tried something similar to > > > > SELECT AVG(a) FROM (SELECT a FROM table ORDER BY a) group by ROWID/10; > > > > in order to take the average 'a' for groups of 10 succesive values. > > Something like this perhaps: > > select avg(a) from MyTable t1 > group by (select count(*) from MyTable t2 where t2.a < t1.a) / 10; > > -- > Igor Tandetnik > > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users -- o W. Luis Mochán, | tel:(52)(777)329-1734 /<(*) Instituto de Ciencias Físicas, UNAM | fax:(52)(777)317-5388 `>/ /\ Apdo. Postal 48-3, 62251 | (*)/\/ \ Cuernavaca, Morelos, México | moc...@fis.unam.mx /\_/\__/ O< ascii ribbon campaign - stop html mail - www.asciiribbon.org _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
