sws Posted November 12, 2006 Share Posted November 12, 2006 Hi,I've got a site where users can enter their hockey picks via a form. There are a series of drop down menus that allow them to select their roster. I have a players table that contain the stats for every nhl player.Now when the user submits their picks via the form it populates a managers table with their user id and the player id for every player they have selected.Now I'm trying to make a web page that displays the contest entrants and their points based on the user stats.What's the best way to handle that ?I tried this but am getting the following error:code: [code]<?php $standings_sql = "SELECT * FROM nhl_players a, nhl_managers b WHERE a.player_id = b.lwl OR a.player_id = b.lw2 ORDER BY points DESC";$standings_query = mysql_query($standings_sql);while ($table_row = mysql_fetch_array($standings_query)){ ?> <td colspan="2"><font face="Verdana, Times New Roman, Times, serif" size="-2" color="#990000"> <?=$table_row['handle']?> </font> </td><?}?>[/code]Error: Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource on Line 66Could it be because I'm using $table_row while trying to select from 2 different tables ? Link to comment https://forums.phpfreaks.com/topic/27030-whats-the-best-way-to-handle-this-my-sql-db/ Share on other sites More sharing options...
toplay Posted November 12, 2006 Share Posted November 12, 2006 You should always check if a query worked before trying to fetch. You have an error at the query. Display it to help solve your problem. For instance, if the points column exists in both tables, then MySQL won't know which one to use (since you didn't specify a "a." or "b.").$standings_query = mysql_query($standings_sql);if (!$standings_query) { echo 'SQL error: ', mysql_error(); exit; // error handling}while ($table_row = mysql_fetch_array($standings_query)) { ... } Link to comment https://forums.phpfreaks.com/topic/27030-whats-the-best-way-to-handle-this-my-sql-db/#findComment-123608 Share on other sites More sharing options...
sws Posted November 12, 2006 Author Share Posted November 12, 2006 I've done some tweaking. Here's my new query that works.SELECT nhl_managers.handle, nhl_players.points FROM nhl_players, nhl_managers WHERE nhl_players.id = nhl_managers.lw1 OR nhl_players.id = nhl_managers.lw2 ORDER BY nhl_players.points DESC;This is working but it's returning one line for every player.What I need is to return the sum of all of the players points on one line with the nhl_managers.handle.Can someone please show me how to do this ? Link to comment https://forums.phpfreaks.com/topic/27030-whats-the-best-way-to-handle-this-my-sql-db/#findComment-123636 Share on other sites More sharing options...
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