Creating a function with a for loop and %type

Question

Hello,
I am trying to create a function which contains a for loop as well as %type.
This function is on a student table and i am trying to create a function which will display the zip which is a varchar2(5).
I need to do this through this function.
However, I can't seem to get it running.
Can anyone help?
below is what i tried as well as other options and was not successful.
I also displayed my error with the show error command.
SQL> create or replace function zip_exist
2 return varchar2
3 is
4 v_zip student.zip%TYPE;
5 cursor c_zip is
6 select zip
7 from
8 student
9 where zip=zip;
10 begin
11 open c_zip;
12 v_zip IN c_zip
13 loop
14 v_zip:=c_zip%TYPE;
15 end loop;
16 close c_zip;
17 end;
18 /
Warning: Function created with compilation errors.
SQL> show error
Errors for FUNCTION ZIP_EXIST:
LINE/COL ERROR
12/7 PLS-00103: Encountered the symbol "IN" when expecting one of the
following:
:= . ( @ % ;
16/1 PLS-00103: Encountered the symbol "CLOSE"
SQL>
kabrajo

Answer 1

user10873577 wrote:
Hello,
I am trying to create a function which contains a for loop as well as %type.
This function is on a student table and i am trying to create a function which will display the zip which is a varchar2(5).
I need to do this through this function.
However, I can't seem to get it running.
Can anyone help?
below is what i tried as well as other options and was not successful.
I also displayed my error with the show error command.
SQL> create or replace function zip_exist
2 return varchar2
3 is
4 v_zip student.zip%TYPE;
5 cursor c_zip is
6 select zip
7 from
8 student
9 where zip=zip;
10 begin
11 open c_zip;
12 v_zip IN c_zip
13 loop
14 v_zip:=c_zip%TYPE;
15 end loop;
16 close c_zip;
17 end;
18 /
Warning: Function created with compilation errors.
SQL> show error
Errors for FUNCTION ZIP_EXIST:
LINE/COL ERROR
12/7 PLS-00103: Encountered the symbol "IN" when expecting one of the
following:
:= . ( @ % ;
16/1 PLS-00103: Encountered the symbol "CLOSE"
SQL>
kabrajoTry This
Create a sample table
SQL> create table student(id number(10),zip varchar2(5));
Table created.Insert the record
SQL> insert into student values(1111,'A5454');
1 row created.
SQL> commit;
Commit complete.
SQL> select * from student;
        ID ZIP
      1111 A5454
SQL> create or replace function zip_exist(v_id number)
  2   return varchar2
  3   is
  4   v_zip student.zip%TYPE;
  5  BEGIN
  6   select zip
  7   INTO v_zip
  8   FROM student
  9   where id=v_id;
10   Return v_zip;
11  EXCEPTION WHEN NO_DATA_FOUND THEN
12                  RETURN 'INVALD';
13  WHEN OTHERS THEN
14                 return  'NA!';
15   end;
16  /
Function created.
SQL> set serveroutput on
SQL> select zip_exist(1111) from dual;
ZIP_EXIST(1111)
A5454
SQL> select zip_exist(2222) from dual;
ZIP_EXIST(2222)
INVALDHope this helps
Regards,
Achyut K