The following lines contain the word 'select', 'insert', 'update' or 'delete':
select
form_tab_stacked_canvas_id
,object_version_number
,form_tab_page_id
,form_canvas_id
from hr_form_tab_stacked_canvases
where form_tab_stacked_canvas_id = p_form_tab_stacked_canvas_id;
select
form_tab_stacked_canvas_id
,object_version_number
,form_tab_page_id
,form_canvas_id
from hr_form_tab_stacked_canvases
where form_tab_stacked_canvas_id = p_form_tab_stacked_canvas_id
for update nowait;