index_U

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

UNION keyword  
union queries, folding data  
unions, sets  
universes, sets  
       comparing sets with universe  
       complement  
UPDATE statement
        audit-log space consumption  
       log triggers  
       row-level logs  
       sets and  
UPDATE trigger, master records online