Eu tenho o seguinte PL / SQL:

declare
    i_cnt number;
begin
    select count(1) into i_cnt 
      from dba_tables 
     where table_name = upper('foo') 
       and owner = upper('bar'); 

if i_cnt > 0 then 
    drop table foo; -- <--- error this line
end if;
end;

De onde recebo esse erro.

ORA-06550: line 6, column 5:
PLS-00103: Encountered the symbol "DROP" when expecting one of the following:

   ( begin case declare exit for goto if loop mod null pragma
   raise return select update while with <an identifier>
   <a double-quoted delimited-identifier> <a bind variable> <<
   continue close current delete fetch lock insert open rollback
   savepoint set sql execute commit forall merge pipe purge

Como posso largar uma mesa em um procedimento?