mysql查詢所有子節點 #查葉子節點 #查孩子節點
不用代碼遞歸
不用存儲過程,臨時表,只用單純的sql語句
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 -- 表結構: t_college: id, college_code (機構編碼), parent_org_code (父機構編碼)
大家把上面的
college_code 換成你的code,
parent_org_code 換成父節點code,
t_college 換成你的表名