Iteration

LOOP    Statements;    ... EXIT ...    MoreStatements; END LOOP;	WHILE Cond LOOP    Statements; END LOOP;
FOR Var IN LoVal..HiVal LOOP    Statements; END LOOP;

EXIT WHEN Cond;
   is shorthand for
IF Cond THEN EXIT; END IF;
Loops can be named to allow multi-level exits
   <<outer>>LOOP
      ...
      <<inner>>LOOP
         ... EXIT outer WHEN i > 100; ...
      END LOOP;
      ...
   END LOOP;