<select id="queryAreaById" resultType="com.imooc.demo.entity.Area">
SELECT area_id,area_name,priority,create_time,last_edit_time
FROM tb_area
WHERE
area_id=#{areaId}
</select>
<select id="queryArea" resultType="com.imooc.demo.entity.Area">
SELECT area_id,area_name,priority,create_time,last_edit_time
FROM tb_area
ORDER BY priority
DESC
</select>
