在MySQL中查询以显示每个菜单'；wordpress数据库中的s子菜单

如何在MySQL中查询以显示wordpress数据库中每个菜单的子菜单

实际上我需要的是sql查询而不是php代码

就像我有菜单，它是这样的

这可能会有所帮助

select * from (select d.*,e.name,e.slug from(SELECT p.id,txr.term_taxonomy_id, p.post_title, p.post_name, p.menu_order, n.post_name as n_name, n.post_title as n_title, pp.meta_value as menu_parent,pt.meta_value as type
FROM wp_term_relationships as txr 
INNER JOIN wp_posts as p ON txr.object_id = p.ID 
LEFT JOIN wp_postmeta as m ON p.ID = m.post_id 
LEFT JOIN wp_postmeta as pl ON p.ID = pl.post_id AND pl.meta_key = '_menu_item_object_id' 
LEFT JOIN wp_postmeta as pp ON p.ID = pp.post_id AND pp.meta_key = '_menu_item_menu_item_parent'
LEFT JOIN wp_postmeta as pt ON p.ID = pt.post_id AND pt.meta_key = '_menu_item_object'
LEFT JOIN wp_posts as n ON pl.meta_value = n.ID 
WHERE p.post_status='publish' 
AND p.post_type = 'nav_menu_item' AND m.meta_key = '_menu_item_url' 
ORDER BY pp.meta_value) d
LEFT JOIN wp_terms as e on d.term_taxonomy_id=e.term_id) i where i.term_taxonomy_id = MENU ID