The following lines contain the word 'select', 'insert', 'update' or 'delete':
select upper(queue_name), upper(name), system_guid
into x_queue_name, x_agent_name, x_sys_guid -- 20
from wf_agents
where guid = p_agent_guid;
select upper(name)
into x_sys_name
from wf_systems
where guid = x_sys_guid;
select ecx_trigger_id_s.NEXTVAL
from dual;
select agt.queue_name into x_out_queue
from wf_agents agt,
wf_systems sys
where agt.name = x_out_agent_name
and sys.name = x_out_system_name
and sys.guid = agt.system_guid;