Calling function in PL/SQL

Question

Hello everyone,
I would like to know if there is anyway to call a user defined function in an SQL statement from a PL/SQL anonymous block without first creating that function to the database.
For instance:
I have a pl/sql block:
DECLARE
BEGIN
UPDATE Request SET map_No = nts_map_no(parm1, parm2, parm3) WHERE ...
END;
I have tried declaring the function within the declare section of the block as in:
DECLARE
FUNCTION nts_map_no
End nts_map_no;
BEGIN
UPDATE Request SET map_No = nts_map_no(parm1, parm2, parm3) WHERE ...
END;
But Oracle wouldn't allow me to use it in an Update statement.
Thank you.

Answer 1

The this might be you are looking for ->
satyaki>
satyaki>select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Prod
PL/SQL Release 10.2.0.3.0 - Production
CORE    10.2.0.3.0      Production
TNS for 32-bit Windows: Version 10.2.0.3.0 - Production
NLSRTL Version 10.2.0.3.0 - Production
Elapsed: 00:00:00.30
satyaki>
satyaki>
satyaki>create table bu_cacy
  2     as
  3       select empno, ename
  4       from emp
  5       where 1=2;
Table created.
Elapsed: 00:00:15.38
satyaki>
satyaki>select * from bu_cacy;
no rows selected
Elapsed: 00:00:00.55
satyaki>
satyaki>
satyaki>
satyaki>declare
  2    a  varchar2(350);
  3    b  number(5);
  4    c  varchar2(350);
  5   
  6    function gg_fin(a_str in varchar2)
  7    return varchar2
  8    is
  9      str  varchar2(300);
10    begin
11      str := 'IFA-'||a_str;
12      return str;
13    end;
14  begin
15    b := #
16    a := '&str';
17   
18    c:= gg_fin(a) ;
19           
20    insert into bu_cacy values(b,c);
21    commit;
22  exception
23    when others then
24      rollback;
25  end;
26  /
Enter value for num: 1
old  15:   b := #
new  15:   b := 1;
Enter value for str: vivi
old  16:   a := '&str';
new  16:   a := 'vivi';
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.10
satyaki>
satyaki>select * from bu_cacy;
     EMPNO ENAME
         1 IFA-vivi
Elapsed: 00:00:00.14
satyaki>Regards.
Satyaki De.