Replacing Clob Content

Question

I have a clob column in a table, which i need to update by replacing all occurrances of string1 in Clob_col with string2.
Eg: update table1 set varchar2_col=replace(varchar2_col, string1,string2) where <condition>. How do I achieve the
same functionality for a clob column? Any help/suggestions/code, highly appreciated.
Thanks in advance.

Answer 1

In that place of my Store Procedure:
declare
clobs1 CLOB;
clobs2 CLOB;
BLOBS blob;
clobs_aux CLOB;
valor number;
cadena varchar2(4000);
nposicion number;
ncontar number:=1;
begin
select docs8_clobs, documento_blob into clobs1,blobs
from hr.EMPLOYEE_DOCUMENTS
where hr.EMPLOYEE_DOCUMENTS.NUM_DOCUMENS=12812;
valor:=DBMS_LOB.INSTR(CLOBS1,'#',1,ncontar);
clobs_aux:=clobs1;
while valor<>0 loop
nposicion:=valor+1;
DBMS_OUTPUT.PUT_LINE(TO_CHAR(VALOR));
clobs2:=DBMS_LOB.SUBSTR(clobs_aux,valor-1,1);
clobs2:=clobs2||' '||to_clob('1306958172');
clobs2:=clobs2||' '||DBMS_LOB.SUBSTR(clobs_aux,nposicion,nposicion);
CLOBS_AUX:=CLOBS2;
if ncontar>=1 then
update hr.EMPLOYEE_DOCUMENTS
set docs8_clobs=clobs_aux
where num_documens=12812;
commit;
end if;
--Recuperar campo CLOB actualizado.
select docs8_clobs, documento_blob into clobs1,blobs
from hr.EMPLOYEE_DOCUMENTS
where hr.EMPLOYEE_DOCUMENTS.NUM_DOCUMENS=12812;
CLOBS_AUX:=CLOBS1;
valor:=DBMS_LOB.INSTR(CLOBS_AUX,'#',1,ncontar);
ncontar:=ncontar+1;
end loop;
end;
Roberto.