The following lines contain the word 'select', 'insert', 'update' or 'delete':
select
calendar_id,
calendar_usage_id,
primary_key_value,
purpose_usage_id,
start_date,
end_date,
object_version_number
from hr_calendar_usages
where calendar_usage_id = p_calendar_usage_id;
select calendar_id,
calendar_usage_id,
primary_key_value,
purpose_usage_id,
start_date,
end_date,
object_version_number
from hr_calendar_usages
where calendar_usage_id = p_calendar_usage_id
for update nowait;