hello, and happy new year to you too.
yes there is a way. it called a cursor in most db systems (but
i don't the term around recently).
use a counter for your result set fetching loop. this counter
can be used as your cursor. use the mysql_field_seek function
to position the cursor anywhere within the result set.
your next mysql_fetch_row will be at the position you specify in
mysql_field_seek.
you should add "ORDER BY mpontos" to your query in order for
it to work.
rds
mauricio portasio
# -Mensagem original-
# De: Fabio Ottolini (EDB) [mailto:[EMAIL PROTECTED]]
# Enviada em: Tuesday, January 16, 2001 9:51 AM
# Para: '[EMAIL PROTECTED]'
# Assunto: [PHP-DB] Creating a ranking
#
#
# Hej alla,
#
# First of all, a Happy New Year for all of you! My vacations are
# gone and I now have to come back to my true reality... Databases
# and PHP. :)
# A very interesting question for you experts. Let's see if you can help me.
#
# I am developing a game with a team and I have to store the scores
# of users on a MySQL database to create a ranking. I have a MySQL
# table called ranking and this table has got the following fields:
#
# user VARCHAR(12) NOT NULL /* nickname of the user */
# mpontos INT NOT NULL /* amount of points per month */
#
# Very simple, huh? Here comes the tricky part... I want to search
# for a specific user and make a query that is able to identify the
# user one position ahead and the user one position behind.
# Something like this:
#
# user mpontos
# UserA 1532
# James Brown 1349
# UserB 1229
#
# The most important part is that it cannot be any user with more
# or less points than James Brown. It must be exactly the users
# with the smallest difference to his amount of points. Do you have
# any suggestions?
#
# The second part of my problem includes the first one and tries to
# go in a little bit further... Using the example above, is it
# possible to "ask" MySQL for the actual position of James Brown
# and the other users on that specific table according to the
# amount of points? Something like this:
#
# user mpontos position
# UserA 153212
# James Brown 134913
# UserB 122914
#
# Any suggestions you experts?
#
# Thanks in advance!!!
#
# Fábio Ottolini
#
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