2010/12/2 Jared Camins-Esakov <jcamins@cpbibliography.com>

Nicole,

I'm not sure I'm completely understanding what you want to do, but, if I am, does this query work:

SELECT DATE(datetime) AS date, SUBSTRING_INDEX(itemcallnumber, ' ', 1) AS 'Call# range', count(*) AS count FROM statistics LEFT JOIN items USING (itemnumber) WHERE statistics.type IN ('issue', 'renew') AND YEAR(datetime) = 2010 GROUP BY DATE(datetime), SUBSTRING_INDEX(itemcallnumber, ' ', 1);

What this should do is select all the text before the first space in a call number. I don't have access to any catalog with circulation data, though, so I can't really test it.

I probably should sit out this one, because I don't have a suggestion, but Jared's suggestion works nicely unless you have call numbers in the form of "R 1234.1233" which results in just the "R" being listed in the "Call# range" column.

You can change the 'count' value in the SUBSTRING_INDEX to '2', but that gets more of the call number than Nicole was looking for I think.

Kind Regards,
Chris