How to write to a CLOB

Hi ;
I am having a hasrd time writing to a CLOB, can you give me some advise??
Thanks..
Here is what I am trying to do:
I have a xml string
<xml>
</xml>
I want to write this string into a CLOB, I amdoing the following:
len := LENGTH(xmlin);
sys.dbms_lob.write(clob_item , len , 0, xmlin );
What am I doing wrong???
null

the offset starts at 1, not 0. try:
sys.dbms_lob.write(clob_item , len , 1, xmlin );

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