Dynamic sql in SQL field

Question

hello,
I need execute an SQL dynamic as field's SQL:
select field1, '(select field2 from table2)'
from table1;
And this field2 as output number. It's possible?

Answer 1

As Billy says, what are you trying to achieve?
SQL> create table a (id number, txt varchar2(20));
Table created.
SQL> create table b (id number, txt varchar2(20));
Table created.
SQL> insert into a select 1, 'fred' from dual union
  2                select 2, 'jim' from dual union
  3                select 3, 'bob' from dual;
3 rows created.
SQL> insert into b select 1, 'typesetter' from dual union
  2                select 2, 'builder' from dual union
  3                select 3, 'stripper' from dual;
3 rows created.
SQL> select a.id, a.txt, (select b.txt from b where b.id = a.id)
  2  from a;
        ID TXT                  (SELECTB.TXTFROMBWHE
         1 fred                 typesetter
         2 jim                  builder
         3 bob                  stripper
SQL> select a.id, a.txt, b.txt
  2  from a JOIN b ON (a.id = b.id);
        ID TXT                  TXT
         1 fred                 typesetter
         2 jim                  builder
         3 bob                  stripper
SQL> select a.id, a.txt, cursor(select b.txt from b)
  2  from a;
        ID TXT                  CURSOR(SELECTB.TXTFR
         1 fred                 CURSOR STATEMENT : 3
CURSOR STATEMENT : 3
TXT
typesetter
builder
stripper
         2 jim                  CURSOR STATEMENT : 3
CURSOR STATEMENT : 3
TXT
typesetter
builder
stripper
         3 bob                  CURSOR STATEMENT : 3
CURSOR STATEMENT : 3
TXT
typesetter
builder
stripper
SQL>