oracle diff:hur jämför man två tabeller?

Prova detta:

(select * from T1 minus select * from T2) -- all rows that are in T1 but not in T2
union all
(select * from T2 minus select * from T1)  -- all rows that are in T2 but not in T1
;

Inget externt verktyg. Inga prestandaproblem med union all .