Yup, you get it for free if you normalize to 6th normal form. As you indicated, it's not a great idea in SQL DBMS's. https://en.wikipedia.org/wiki/Sixth_normal

Yup, you get it for free if you normalize to 6th normal form. As you indicated, it's not a great idea in SQL DBMS's. https://en.wikipedia.org/wiki/Sixth_normal_form https://en.wikipedia.org/wiki/Sixth_normal_form