On Dec 11, 2007, at 10:46 AM, Rob Wultsch wrote:
On Dec 11, 2007 8:38 AM, Anders Norrbring <[EMAIL PROTECTED]> wrote:
I'm looking at a situation I haven't run into before, and I'm a bit
puzzled by it.
I have this table structure:
Table USERS: userid, class
Table OBJECT: userid, class, result
Now I want to query the database for a certain user's result in a
specified class, which is very, very easy. No problems.
But, I also want to find out the user's position relative to others
depending on the result.
So, if the specified user's result is the 9:th best of all of the
users,
I want to have a reply from the DB query that say he has position
number 9.
I really can't figure out how to do that... Somehow I have to make
MySQL
calculate the position based on the value in the result column.
Take a look at http://arjen-lentz.livejournal.com/55083.html . Very
similar ideas in play, though you also have a join.
The basic idea is that you do a count on the number of users that have
a lower score.
Is there any reason you wouldn't want to count the people in front of
you and add 1 to get your place in line? It seems like depending on
where you are, that may be a shorter number to count :)
But I don't know anything about how to do stuff off of separate tables
yet still trying to grasp that :)
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