oracle11g - SQL Subquery Determination -

oracle11g - SQL Subquery Determination -

please help error ora-01427. using spring3-jpa2 , next query throws out ora-01427.

i need understand part of query treated subquery. or view code throwing it? please note happens couple of records test with.

select * vw_get_group_queue taskgroup taskgroup.component_id=?1 , taskgroup.role_code=?2 , ((taskgroup.work_item_type ?3 or taskgroup.work_item_type null)) , taskgroup.soeid=?4 , rownum=1

oracle11g