cross-tabulation pointers
selwyn
selwyn at aotearoa.is.home.nz
Wed Jun 16 05:57:07 EDT 2004
hi there,
I would like some pointers on a pythonesque way of cross-tabulating an
SQL result set.
i.e. from the result set below:
dept | gender
-------------
hr | m
hr | f
sales | m
sales | m
should result in this (formatting aside):
dept | M | F
------------------
hr | 1 | 1
sales | 2 | 0
I have come across a couple of server-side solutions such as the
following from http://www.devshed.com/c/a/MySQL/MySQL-wizardry/1/
mysql> SELECT location, SUM(IF(gender='M',1,0)) AS M,
SUM(IF(gender='F',1,0)) AS F, COUNT(*) AS total
GROUP by location;
However, I am using SQLite and there is no IF function available.
Moreover I am hoping that someone may point me towards an undoubtedly
more pleasant python solution ;-)
thanks heaps,
Selwyn
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