1: 获取部门数据 (基础)
SELECT `id`, CONCAT(pid_path,id) as pid_path2,pid_path,title FROM `web_department`;
2: 获取部门数据 (进阶, 但是是,分隔)
SELECT t1.id, t1.title, CONCAT(t1.pid_path, ',', t1.id) AS pid_path,
(SELECT GROUP_CONCAT(t2.title ORDER BY FIND_IN_SET(t2.id, CONCAT(t1.pid_path, ',', t1.id)))
FROM web_department AS t2
WHERE FIND_IN_SET(t2.id, CONCAT(t1.pid_path, ',', t1.id))) AS full_path
FROM web_department AS t1;
3: 获取部门数据 (升华, 可以 / 分隔)
SELECT t1.id, t1.title, CONCAT(t1.pid_path, ',', t1.id) AS pid_path,
REPLACE((
SELECT GROUP_CONCAT(t2.title ORDER BY FIND_IN_SET(t2.id, CONCAT(t1.pid_path, ',', t1.id)) SEPARATOR '/')
FROM web_department AS t2
WHERE FIND_IN_SET(t2.id, CONCAT(t1.pid_path, ',', t1.id))
), ',', '/') AS full_path
FROM web_department AS t1;
4: 获取部门数据 (再次升华, 可以条件搜索)
SELECT *
FROM (
SELECT t1.id, t1.title, CONCAT(t1.pid_path, ',', t1.id) AS pid_path,
REPLACE((
SELECT GROUP_CONCAT(t2.title ORDER BY FIND_IN_SET(t2.id, CONCAT(t1.pid_path, ',', t1.id)) SEPARATOR '/')
FROM web_department AS t2
WHERE FIND_IN_SET(t2.id, CONCAT(t1.pid_path, ',', t1.id))
), ',', '/') AS full_path
FROM web_department AS t1
) AS temp
WHERE temp.full_path = '总经办/研发部/测试部';