How can I split CSV strings in Oracle 9i?

1142380 pts.
Tags:
CSV
Oracle 9i
I'm trying to to split several CSV strings in Oracle 9i but I'm running into a few issues so I have a couple of questions:
  1. Is this possible in Oracle 9i?
  2. Do I need to create a new data type?
  3. Would I be able to declare the type within the function?
Thank so much!
1

Answer Wiki

Thanks. We'll let you know when a new response is added.

Hi, I think the following string tokenizer code can be helpful: –

create or replace function splitter_count(str in varchar2, delim in char) return int as
val int;
begin
  val := length(replace(str, delim, delim || ' '));
  return val - length(str); 
end;

create type token_list is varray(100) of varchar2(200);

CREATE or replace function tokenize (str varchar2, delim char) return token_list as
ret token_list;
target int;
i int;
this_delim int;
last_delim int;
BEGIN
  ret := token_list();
  i := 1;
  last_delim := 0;
  target := splitter_count(str, delim);
  while i <= target
  loop
    ret.extend();
    this_delim := instr(str, delim, 1, i);
    ret(i):= substr(str, last_delim + 1, this_delim - last_delim -1);
    i := i + 1;
    last_delim := this_delim;
  end loop;
  ret.extend();
  ret(i):= substr(str, last_delim + 1);
  return ret;
end;

Thanks and regards
Ashish@S

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