SQL-Problem mal wieder

[alex517]

SQL-Code:

SELECT
  distinct(tree.name) as name,
  tree.id as id,
  tree2contact.contact_id as contact_id
from
  tree
  left join tree2contact on tree.id=tree2contact.tree_id and 
                            ((tree2contact.contact_id=25) or (tree2contact.contact_id is Null))
Where
  tree.parent=0
order by
  tree.name

alex