614: --
615: --nvl clause added for p_step_id as part of fix for bug 3865077.
616: cursor csr_uniq_step_point is
617: select 'x' 618: from sys.dual 619: where exists
620: (select null
621: from per_spinal_point_steps_f
622: where grade_spine_id = p_grade_spine_id