Cumulative DQL with Doctrine

Question

Im having a hard time working out a proper DQL to generate cumulative sum. I can do it in plain SQL but when it comes to DQL i cant get hold of it.

Here is how it lo

Answer 1

You just specify the sum in your select part of the DQL:

$query = Doctrine_Query::create()
   ->select('sum(amount)')
   ->from('some_table');

Check out this page in the Doctrine documentation for more info.