The following lines contain the word 'select', 'insert', 'update' or 'delete':
SELECT to_number(scl.segment4)
from per_all_assignments_f asg,
pay_all_payrolls_f papf,
hr_soft_coding_keyflex scl
where asg.business_group_id = papf.business_group_id
and papf.payroll_id = asg.payroll_id
and asg.assignment_id = l_assignment_id
and l_effective_date between asg.effective_start_date and asg.effective_end_date
and l_effective_date between papf.effective_start_date and papf.effective_end_date
and papf.soft_coding_keyflex_id = scl.soft_coding_keyflex_id;