SQL & PL/SQL

Hi all, here's my question.

(I'm using PL/SQL Developer with Oracle 10g)

I have an table 'tbcontrol' where for each row I can have one or more sql statements (DML or DDL) in an column.

Example:
task | sql_scripts
1 | create table t1 (c1 number); insert into t1 (c1) values 100;
2 | create table t2 (c2 number); alter table t1 modify c1 not null default 0;
3 | alter table t2 modify c2 not null default 0; alter table t1 add c10 varchar2(10); create table t3 (c3 number not null default 0;

I need to create a procedure where I can pass an task number to execute the sql statements which are in the column 'sql_scripts'. Something like this:

create or replace sp_run_scripts (v_task number)
is
v_scripts varchar2(2000);
begin
select sql_scripts into v_scripts from tbcontrol where task = v_task
execute immediate v_scripts;
end;

But, here I'll have some problems:
- The script will have semicolons (EXECUTE IMMEDIATE doesn't support);
- If I put a begin/end like a PL/SQL script, I can only run DML statements because DDL statements have implicit commit.
- I can't use a cursor for execute each statement at a time because the scripts have multiples-rows. Even if I search for semicolons to 'separate' the scripts in the cursor (using SUBSTR and INSTR functions), I'll have problems with the semicolons between '' (quotations marks).

Now, I admit I'm lost.

Is there another way to make this process work?

Thank you for any help.
Lucas Porto