Identify Peoplesoft temp tables with process instance

select sum(bytes)/(1024*1024)AS MB,segment_name, b.CREATED
from user_segments a, all_objects b
where segment_type='TABLE'
and length(regexp_replace(segment_name, '\D')) >4
and a.segment_name = b.object_name
and b.OBJECT_TYPE='TABLE'
GROUP BY segment_name,CREATED
ORDER BY 1 DESC ;