On Wed, 2002-10-16 at 19:26, Eric L. Blevins wrote:
> I've got 2 SQL statements I would like to combine into one.
...
> statement 1: SELECT uid, count(uid) FROM triangulated WHERE uid != 'anonymus' AND uid
> != 'anonymous' AND uid != '' GROUP BY uid ORDER BY count DESC LIMIT 10;
...
> statement 2: SELECT uid, count(uid) FROM points WHERE uid != 'anonymus' AND uid !=
> 'anonymous' AND uid != '' GROUP BY uid ORDER BY count DESC LIMIT 10;
...
> what I want to do is have one statement that returns something like this:
> uid | count1 | count2
> eblevins 1179 23595
> DaClyde 398 11031
> Drew 30 104
> zombiechick 3 159
>
> So everything is ordered like statement 1 but includes the count(uid) from the points DB like statement 2 returns
SELECT * FROM (SELECT uid, count(uid) AS count1 FROM triangulated WHERE uid != 'anonymus' AND uid !=
'anonymous'AND uid != '' GROUP BY uid) AS c1 LEFT JOIN (SELECT uid, count(uid) AS count2 FROM points
WHERE uid != 'anonymus' AND uid != 'anonymous' AND uid != '' GROUP BY uid) AS c2 ORDER BY count1
DESCLIMIT 10;
(Apologies for syntax errors, if any - I haven't tried it out,)
I used LEFT JOIN because you are ordering by count1, so you probably
won't want any rows where count1 is null. If the total of rows from
subselect c1 was likely to be less than 10, you might want to do a FULL
JOIN and order by count1, count2.
--
Oliver Elphick Oliver.Elphick@lfix.co.uk
Isle of Wight, UK
http://www.lfix.co.uk/oliver
GPG: 1024D/3E1D0C1C: CA12 09E0 E8D5 8870 5839 932A 614D 4C34 3E1D 0C1C
======================================== "But be ye doers of the word, and not hearers only, deceiving your own
selves." James 1:22
