Oracle pipelined function: ORA-06502 numeric or value error

Question

I wrote a pipelined function to query data from a remote database. I keep getting

ORA-06502: PL/SQL: numeric or value error: character string buffer too small.

I think I do understand when this error would occur, for example when a table column is defined as VARCHAR2(10) and you try to insert something bigger than 10 byte. But in this case, I really don't see whats wrong.

Perhaps first I show the parameters of the local and the remote database. I think it might be important, that on both DBs NLS_LENGTH_SEMANTICS is set to BYTE .

Local DB (where the pipelined function is stored): params local db

Remote DB (from where data is queried): params remote db

Now the code in local db:

create or replace function f_get_pl_data return tb_pl_palette pipelined is
begin
    for i in (select p.*, 123 LAGER from palette@myremotedb p)
    loop
      pipe row(tt_pl_palette(i.pid,i.bereich,i.regal,i.fach,i.ebene,i.vol_klasse,i.lhm_typ,i.zustand,i.neu_datum,
               i.neu_zeit,i.neu_usr,i.aender_datum,i.aender_zeit,i.aender_usr,i.verl_datum,i.tournr,
               i.fil_nr,i.retournr,i.fz_nr,i.fahrer_nr,i.eroeff_auswahl,i.tpa_knz,i.lfsaender_knz,
               i.verladen_am,i.verladen_um,i.verladen_von,i.verladen_von2,i.leer_gew,i.soll_gew,
               i.ist_gew,i.lager));
    end loop;
    
    return;
end;

CREATE OR REPLACE TYPE "TT_PL_PALETTE" AS OBJECT (
  pid            VARCHAR2(14),
  bereich        VARCHAR2(2),
  regal          VARCHAR2(2),
  fach           VARCHAR2(3),
  ebene          VARCHAR2(2),
  vol_klasse     INTEGER,
  lhm_typ        INTEGER,
  zustand        INTEGER,
  neu_datum      DATE,
  neu_zeit       VARCHAR2(11),
  neu_usr        VARCHAR2(4),
  aender_datum   DATE,
  aender_zeit    VARCHAR2(11),
  aender_usr     VARCHAR2(4),
  verl_datum     DATE,
  tournr         VARCHAR2(6),
  fil_nr         VARCHAR2(4),
  retournr       VARCHAR2(10),
  fz_nr          INTEGER,
  fahrer_nr      INTEGER,
  eroeff_auswahl INTEGER,
  tpa_knz        VARCHAR2(1),
  lfsaender_knz  VARCHAR2(1),
  verladen_am    DATE,
  verladen_um    VARCHAR2(11),
  verladen_von   VARCHAR2(4),
  verladen_von2  VARCHAR2(4),
  leer_gew       NUMBER(7,3),
  soll_gew       NUMBER(7,3),
  ist_gew        NUMBER(7,3),
  lager          NUMBER
  )

CREATE OR REPLACE TYPE "TB_PL_PALETTE"  as TABLE OF TT_PL_PALETTE

And this is the table specifications on remote db:

create table PALETTE
(
  pid            VARCHAR2(14) not null,
  bereich        VARCHAR2(2) not null,
  regal          VARCHAR2(2) not null,
  fach           VARCHAR2(3) not null,
  ebene          VARCHAR2(2) not null,
  vol_klasse     INTEGER,
  lhm_typ        INTEGER,
  zustand        INTEGER,
  neu_datum      DATE default trunc(sysdate),
  neu_zeit       VARCHAR2(11) default to_char(sysdate, 'HH24:MI:SS'),
  neu_usr        VARCHAR2(4),
  aender_datum   DATE,
  aender_zeit    VARCHAR2(11),
  aender_usr     VARCHAR2(4),
  verl_datum     DATE,
  tournr         VARCHAR2(6),
  fil_nr         VARCHAR2(4),
  retournr       VARCHAR2(10),
  fz_nr          INTEGER,
  fahrer_nr      INTEGER,
  eroeff_auswahl INTEGER,
  tpa_knz        VARCHAR2(1) default '0',
  lfsaender_knz  VARCHAR2(1) default 'N',
  verladen_am    DATE,
  verladen_um    VARCHAR2(11),
  verladen_von   VARCHAR2(4),
  verladen_von2  VARCHAR2(4),
  leer_gew       NUMBER(7,3),
  soll_gew       NUMBER(7,3),
  ist_gew        NUMBER(7,3)
)

So you can see, when I created the type in local db I choosed the exact sizes of the columns in remote db. But when I execute/query the pipelined function, I get this error (sorry it's german, but I wrote english in title): error message

How can this happen? Do you have any idea what's wrong? Appreciate any help, thanks!

EDIT 2021-03-02: @ShaunPeterson Thanks for reply, NLS_CHARACTERSET is set to AL32UTF8 on both DBs, local and remote.

I just found out, the problem seems to be caused by 2 different IDEs that are used in our company. I am using PL/SQL Developer from allround automations. When I posted the table specifications on remote DB (table "PALETTE"), I connected to remote DB using that IDE, and it showed the column types/sizes as you can see in my original post. I repeat the first 6 columns:

create table PALETTE
(
  pid            VARCHAR2(14) not null,
  bereich        VARCHAR2(2) not null,
  regal          VARCHAR2(2) not null,
  fach           VARCHAR2(3) not null,
  ebene          VARCHAR2(2) not null,
  vol_klasse     INTEGER,

But when Oracle SQL Developer is used, then it looks like this:

CREATE TABLE "PSTEDI"."PALETTE" 
   (    "PID" VARCHAR2(14 CHAR) NOT NULL ENABLE, 
    "BEREICH" VARCHAR2(2 CHAR) NOT NULL ENABLE, 
    "REGAL" VARCHAR2(2 CHAR) NOT NULL ENABLE, 
    "FACH" VARCHAR2(3 CHAR) NOT NULL ENABLE, 
    "EBENE" VARCHAR2(2 CHAR) NOT NULL ENABLE, 
    "VOL_KLASSE" NUMBER(*,0), 

So it seems PL/SQL Developer just shows wrong specifications. I have no idea why it is like that, and I would like to know, but that's another question. I solved my problem using the column types and sizes Oracle SQL Developer shows.

Thank you.

Answer 1

@Dietz, what you said was fine for me.

I'm having the same problem as you, I am wondering if it's a bug. Like you:

• I created types in ADT exactly as in their respective table columns.
• I set my NLS_LENGTH_SEMANTICS.

However:

• I set a default in SQL Developer.
• I am not accessing a remote DB.
• I don't believe it's related to either of these.

FYI, I'm going to try one more thing and if it doesn't work, I'll open a ticket with Oracle Support. I will update here with what I find or workaround from Oracle Support.