MySQL Query order by numer of rows?

Posted by Clemens on Stack Overflow See other posts from Stack Overflow or by Clemens
Published on 2010-03-15T19:38:00Z Indexed on 2010/03/15 19:39 UTC
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hi,

i have a mysql table for votes. there's am id, a project_id and a vote field (which is 1 if a specific project is voted). now i want to generate a ranking from those entries. is there a way to get the number of votes for each project_id and automatically sort the entries by the number of TRUE votes of a project with a single mysql query? Or do you know a php way?

e.g.

ID - Project ID - Vote

1 - 2 - 1

2 - 2 - 1

3 - 1 - 1

==>

Project Nr. 2 has 2 Votes

Project Nr. 1 has 1 Vote

Thanks in advance!

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