Index U

[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [Y] [Z]

unique indexes  
update queries (action queries)   2nd   3rd   4th   5th   6th