Split Output from Select into 2 different Cols

Question

Hi,
I am new to oracle dev. Env Oracle 10g R2
I need a help with the following.
I have a select query that returns comma separated values.
Column LIST1 in table svp_1.
This needs to hold that data returned by the select query.
Datatype of Column LIST1 varchar2(4000)
I get the follwing error.
ORA-19011: Character string buffer too small
CREATE OR REPLACE PROCEDURE
sale_temp( pType in Char,lDate in date) as
cnt number;
v_error_code NUMBER;
v_error_msg VARCHAR2(2000);
cursor c1 is select svp
from sale
where type = pType
var1 c1%ROWTYPE;
BEGIN
UPDATE svp_1
SET LIST1 = ( SELECT LTRIM( xmlagg (xmlelement (c, RTRIM(RELATED_SVP) || ',')).extract ('//text()'), ',' ) AS RELATED_SVP from (
SELECT rtrim(BASE_SVP) BASE_SVP,
rtrim(RELATED_SVP) RELATED_SVP
from
svp_enc se
where
se.effective date<= pDate
and (se.expiration_date is null or se.expiration_date > plDate )
and se.base_svp in
( var1.svp
and se.RELATION_TYPE = '4'
)group by base_svp)
WHERE type = pType
commit;
dbms_output.put_line('UPDATE done' );
end;
end loop;
close c1;
END ;
My requirement :
In need to capture the data from the select query and update the column.
The data needs to be returned as comma separated values.
This data can also be split into 2 columns.....ie data split and updated into 2 cols ie LIST1 AND LIST2 ( can be added to existing table).
What is the best way to do this?
Is the below approach possilble?
LOOP through cursor ...check the length of data....for the select query ....check length .if > 3990 byte.....then write into 2 plsql variables.....and update 2 cols....
Is this apporach right, if so how to do that in the procedure ? Please give an example...
Are there any other approaches...?
All I need is to Split Output from Select into 2 different columns and avoid the ORA-19011: Character string buffer too small error.
Thanks in advance.

Answer 1

Re: ORA-19011: Character string buffer too small