ORACLE数据库递归查询当前节点的父节点和子节点（tree）

ORACLE 数据库递归查询当前数据的所有孩子数据（不包含自己）

SELECT id   AS id,  parent_id AS parentId,  parent_id AS parent,  name      AS textFROM mdm_center  START WITH parent_id = #{parentId}  CONNECT BY prior id  = parent_id

ORACLE数据库查询当前数据的所有父数据（包含自己）

SELECT id   AS id,  parent_id AS parentId,  parent_id AS parent,  name      AS textFROM mdm_center  START WITH id              = #{centerId}  CONNECT BY prior parent_id = id