mysql CONCAT()函数用于将多个字符串连接成一个字符串,是最重要的mysql函数之一
写法①、select * from t_202_pn_info d left join t_208_sys_terminal b on d.id=b.id
where b.terminal_type='2' and b.dept_path like CONCAT(CONCAT( #{deptPath}), '%')
写法②、 SELECT <include refid="dept_col" />
FROM t_208_sys_terminal d
WHERE d.terminal_type='0'
AND d.dept_path like '${deptPath}%'