t.role_id as roleId, t.menu_id as menuId select a.* from system_menu_role a left join system_menu b on a.menu_id=b.id where a.role_id = #{roleId} and b.parent_id=#{parentId} and a.menu_id!=#{menuId}; delete system_menu_role from system_menu_role inner join system_menu on system_menu_role.menu_id=system_menu.id where system_menu_role.role_id = #{roleId} and system_menu.parent_id=#{parentId}; delete from system_menu_role where role_id = #{roleId} and menu_id = #{menuId}