Bind parse errors

Question

Oracle 11.2.0.1.
Background: doing "multi-threading" using DBMS_PARALLEL_EXECUTE, which uses the bind variables +:start_id+ and +:end_id+ when executing a "thread".
The Problem: Oracle chokes on parsing a bind variable used in a FOR loop. Example:
// using bind variables in a for loop causes a parse error
SQL> begin
  2          execute immediate
  3                  'begin
  4                          for i in :start_id..:end_id loop
  5                                  dbms_output.put_line(i);
  6                          end loop;
  7                  end;'
  8          using   in 1,
  9                  in 10;
10  end;
11  /
begin
ERROR at line 1:
ORA-06550: line 2, column 24:
PLS-00103: Encountered the symbol "" when expecting one of the following:
<an identifier> <a double-quoted delimited-identifier>
current delete exists prior
The symbol "<an identifier> was inserted before "" to continue.
ORA-06512: at line 2
// work-around - use variables instead in the for loop and assign bind values
// to these variables
SQL> begin
  2          execute immediate
  3                  'declare
  4                          startID integer := :start_id;
  5                          endID   integer := :end_id;
  6                  begin
  7                          for i in startID..endID loop
  8                                  dbms_output.put_line(i);
  9                          end loop;
10                  end;'
11          using   in 1,
12                  in 10;
13  end;
14  /
1
..snipped..
10
PL/SQL procedure successfully completed.
SQL>
{code}
Any ideas whether this is a known bug (my simplistic SQL parser for detecting bind variables detects the binds just fine with the 1st test case above)?
Any better work-around?                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

Answer 1

Just a matter of spaces in the FOR statement it seems:
SQL> ed
Wrote file afiedt.buf
  1  begin
  2    execute immediate
  3      'begin
  4         for i in :start_id .. :end_id loop
  5           dbms_output.put_line(i);
  6         end loop;
  7       end;'
  8    using   in 1,
  9            in 10;
10* end;
SQL> /
1
2
3
4
5
6
7
8
9
10
PL/SQL procedure successfully completed.Edit: more specifically the space after the first bind variable:
SQL> ed
Wrote file afiedt.buf
  1  begin
  2    execute immediate
  3      'begin
  4         for i in :start_id ..:end_id loop
  5           dbms_output.put_line(i);
  6         end loop;
  7       end;'
  8    using   in 1,
  9            in 10;
10* end;
SQL> /
1
2
3
4
5
6
7
8
9
10
PL/SQL procedure successfully completed.
SQL> ed
Wrote file afiedt.buf
  1  begin
  2    execute immediate
  3      'begin
  4         for i in :start_id.. :end_id loop
  5           dbms_output.put_line(i);
  6         end loop;
  7       end;'
  8    using   in 1,
  9            in 10;
10* end;
SQL> /
begin
ERROR at line 1:
ORA-06550: line 2, column 29:
PLS-00103: Encountered the symbol "" when expecting one of the following:
<an identifier> <a double-quoted delimited-identifier>
current delete exists prior
The symbol "<an identifier> was inserted before "" to continue.
ORA-06512: at line 2
{code}
Edited by: BluShadow on 17-Apr-2013 10:08