oracle8.1.6
select count(task_id)
from evaluation_tasks et, evaluation_grades eg
where eg.grade_id = :grade_id
and content_revision.is_live(eg.grade_id) = 't'
and eg.grade_item_id = et.grade_item_id
, round(evaluation.task_grade(cu.user_id,$task_id),2) as task_$task_id
, round(evaluation.grade_total_grade(cu.user_id,:grade_id),2) as total_grade