Oracle 如何在exexute立即字符串内部传递一个bind变量？

---- ENSURE THAT BULK PROCESSING IS DISABLED ----
              begin
                execute immediate 'begin
                                     if ... then
                                       ...;
                                       log#.warn('' some text ''''' || || id || || '''''more text'');
                                     end if;
                                   end;';
              exception
                when others then debug('some error');
              end;

begin
  execute immediate 'begin
                       log#.warn(''- :1 -'');
                     end;'
  using 'Whoa!';
end;

Error starting at line : 1 in command -
begin
  execute immediate 'begin
                       log#.warn(''- :1 -'');
                     end;'
  using 'Whoa!';
end;
Error report -
ORA-01006: bind variable does not exist
ORA-06512: at line 2
01006. 00000 -  "bind variable does not exist"
*Cause:    
*Action:

begin
  execute immediate 'declare
                       l_id pls_integer := :1;
                     begin
                       log#.warn(''- ''''' || l_id || ''''' -'');
                     end;'
  using 'Whoa!';
end;

Error starting at line : 1 in command -
begin
  execute immediate 'declare
                       l_id pls_integer := :1;
                     begin
                       log#.warn(''- ''''' || l_id || ''''' -'');
                     end;'
  using 'Whoa!';
end;
Error report -
ORA-06550: line 5, column 47:
PLS-00201: identifier 'L_ID' must be declared
ORA-06550: line 2, column 3:
PL/SQL: Statement ignored
06550. 00000 -  "line %s, column %s:\n%s"
*Cause:    Usually a PL/SQL compilation error.
*Action:

begin

execute immediate q'!begin
dbms_output.put_line('- ' || :1 || '-');
end;!'
using 'Whoa!';

end;
/

- Whoa!-


PL/SQL procedure successfully completed.