Alle 21:57, giovedì 1 aprile 2004, Michael Stassen ha scritto:
You could probably accomplish this with a variant of the MAX-CONCAT
trick
http://www.mysql.com/doc/en/example-Maximum-column-group-row.html.
Something like:
SELECT user_id,
Right. You're grouping by user_id and throwing in title, and you're hoping
to influence which of the titles is chosen to go with user_id, but as title
is neither part of your group nor part of an aggregate function, its value
is undefined. See the manual for an explanation
Try seeding your rand.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Wednesday, March 31, 2004 12:57 PM
To: [EMAIL PROTECTED]
Subject: group by order by rand() problem
I have this table:
mysql select * from banners;
Try seeding your rand.
Tried. It doesn't work. The select shows always the same records but
in different order:
SELECT * FROM banners GROUP BY user_id ORDER BY RAND();
first call
++-+---+
| id | user_id | title |
++-+---+
| 1 | 1 |
-Original Message-
From: Dathan Vance Pattishall [mailto:[EMAIL PROTECTED]
Sent: Thursday, April 01, 2004 7:16 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: RE: group by order by rand() problem
Try seeding your rand.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL
