mysql查询所有子节点 非递归
mysql查询所有子节点 #查叶子节点 #查孩子节点
不用代码递归
不用存储过程,临时表,只用单纯的sql语句
SELECT t3.college_code FROM ( SELECT t1.college_code, IF ( find_in_set( t1.parent_org_code, @pids ) > 0, @pids := concat( @pids, ',', t1.college_code ), 0 ) AS ischild FROM ( SELECT college_code, parent_org_code FROM t_college t WHERE t.STATUS = 1 ORDER BY parent_org_code, college_code ) t1, ( SELECT @pids := '22300' college_code ) t2 ) t3 WHERE t3.ischild != 0 -- 表结构: t_college: id, college_code (机构编码), parent_org_code (父机构编码)
大家把上面的
college_code 换成你的code,
parent_org_code 换成父节点code,
t_college 换成你的表名