plsql - ORACLE Update with MINUS result -


in oracle 10g, want update records of resulting minus query below: 

(  select a,b,c table1    minus   select a,b,c table2 )

the column updated not part of minus query not present in both tables below code not option

update (  select a,b,c table1    minus   select a,b,c table2 ) set table1.d = 'test'

how about:

update table1    set d = 'test'  (a,b,c) not in(select a,b,c table2);

edit: performance of minus suck, due sort operation. if of {a,b,c} nullable, try following instead:

update table1 t1    set t1.d = 'test'  not exists(          select 'x'            table2 t2           t2.a = t1.a             , t2.b = t1.b             , t2.c = t1.c        );

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