How to find character code in PL/SQL?

Question

I want to find character code of particular character in string. For instance if I have a string

"Hello"

How do i find the character code of all or particular characters in the string.

I see that PL/SQL has a ASCII() and ASCIISTR() functions but I could not find any character related functions.

Answer 1

  create or replace function asciistr2(s IN varchar2)
  RETURN varchar2
  IS
    result varchar2(32767) := '';
  BEGIN
    FOR i IN 1..Length(s)
      LOOP
      dbms_output.put_line(ASCII(substr(s,i,1)));
      result := result || ASCII(substr(s,i,1));
      END LOOP;
      return result;
  END;


  Select asciistr2('HELLO') from dual

Result: 7269767679

dbms_output

 72
 69
 76
 76
 79

Answer 2

What exactly would you expect? Looking at your question, it seems to me that ASCII() would give you what you need, see this ASCII tutorial . You can loop

Or are you referring to the Unicode value?