Help. Strange problem with a function returning VARCHAR2

Question

Hi.
i have a function that returns VARCHAR2, the following happens:
IS
v_retorno VARCHAR2(1000);
v_stm2 VARCHAR2(500);
v_stm1 VARCHAR2(500);
BEGIN
v_retorno :='INSERT INTO '||p_nome_tabela||'('||v_stm1||') VALUES('||v_stm2||')';
-- it raises an exception OTHERS here
v_stm1 has the value :
PERFIL,TIPDOC,GRPIMP,DES,IMPDES,GRPAGI,TOTAGI,TOTPOSRVP,TOTNEGRVP,TOTALIZA,TEMMSG,ORDEM,CODFORCAB,SINAL,ORDEM,CODEMP,USER_CRI,DT_CRI
v_stm2 has the value:
'BASE','03','999999','teste','N','0701','N','111111','222222','S','N',TO_NUMBER('111'),'X',TO_NUMBER('1'),TO_NUMBER('222'),TO_NUMBER('10'),'427195',TO_DATE('19-05-2008 04:32:49','DD-MM-YYYY HH:MI:SS')
p_nome_tabela is a table name, for example my_table.
This is to produce a varchar2 string to execute dynamic sql.
Can you help? I don't understand what's wrong.
If i do this :
v_retorno :='INSERT INTO '||p_nome_tabela||'('||v_stm1||') VALUES(';
it works, doesn't raise the OTHERS exception, but if i had the other variable, the OTHER is raised.

Answer 1

No idea if this is relevant here or not, but:
v_retorno VARCHAR2(1000);
v_stm2 VARCHAR2(500);
v_stm1 VARCHAR2(500);What happens if your v_stm1 and v_stm2 variables are both 500 characters long?
I think you should think about increasing the length of v_retorno...