Thanks for fast repply Steve,

Thank you for your suggestions on points (1 and 2), I will do as you said.

About point 3, yes, mnu_order and menu_id ever will be selected in same query filter, my doubt is, Is it correct to combine fk column and normal column on same group index? Is it the same thing do it together? or I need to do separated like the example?, thank you again 🙂