Dynamic For loop in Oracle 10g

Question

Hi ,
my requirement is to write dynamic for loop , Some thing similar to below plsql block, But I am getting error , please suggest
declare
lv_text varchar2(200);
begin
lv_text:='select * from some_table ';
for i in (lv_text)
loop
null;
end loop;
end;
**** Here my purpose of lv_text is to use a dynamic query in for loop.

Answer 1

You are getting error because lv_Text is not a cursor variable.... So you can try this way..if your statement is known...
begin
For rec in (select * from emp)
loop
dbms_output.put_line(rec.ename);
end loop;
end;
Or try this if your statements can be controlled based on your addition input(cnt)
create or replace procedure p_ref_Cursor
+(p_Empno in number,p_ename out varchar2,p_sal out number,cnt number)+
is
Type ref_cursor is ref cursor;
e_ref_Cursor ref_Cursor;
begin
if cnt =1 then
open e_Ref_Cursor for select ename from emp where empno=p_Empno;
fetch e_ref_cursor into p_ename;
else
open e_Ref_Cursor for select sal from emp where empno=p_Empno;
fetch e_ref_cursor into p_sal;
end if;
close e_ref_cursor;
end;
or Use dbms_sql package for creating dynamic SQL as suggested by others too if your statement is completely dynamic ..:)