传递参数：文件夹ID
1 DROP FUNCTION IF EXISTS RecursionFolderFullPath; 2 3 CREATE FUNCTION RecursionFolderFullPath(folderId INT(11)) 4 RETURNS VARCHAR(1000) 5 BEGIN 6 declare fullPath VARCHAR(1000) default ''; 7 declare parentId INT(11) default '0'; 8 9 select concat(folder_name,'/',fullPath),folder_parent_id into fullPath,parentId10 from folder 11 where folder_id=folderId;12 13 WHILE parentId > 0 DO14 select concat(folder_name,'/',fullPath),folder_parent_id into fullPath,parentId15 from folder 16 where folder_id=parentId;17 END WHILE;18 19 return fullPath; 20 END;
调用：
1 select RecursionFolderFullPath(67);
结果：
