The following lines contain the word 'select', 'insert', 'update' or 'delete':
select
calendar_id,
calendar_name,
pattern_start_position,
calendar_start_time,
pattern_id,
object_version_number
from hr_calendars
where calendar_id = p_calendar_id;
select calendar_id,
calendar_name,
pattern_start_position,
calendar_start_time,
pattern_id,
object_version_number
from hr_calendars
where calendar_id = p_calendar_id
for update nowait;