The following lines contain the word 'select', 'insert', 'update' or 'delete':
select ecx_trigger_id_s.NEXTVAL
from dual;
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_inlstn_s.nextval into i_message_counter from dual ;