DB2 save CLOB (>16Mb) into IFS

Question

I'm trying to save the content of a field(CLOB) into a file on the IFS (iSeries).

The file doen't exist before save the content and the file is created perfect, but I don't know why at the begining (always position 1 and 2) the file contains two odd characteres. This characteres aren't always the same.

I think it's a problem with the conversion between clob field an the file (ifs - smtf) Does anyone how to solve this problem?

Thanks in advance!!

PD.:Sorry, I coudn't attach an image because I need at least 10 reputation to post images.

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Variable Definiton in RPGLE

D xmlEntrada      s                   sqltype(CLOB:10000000)

fd = open('/folder/file/file.xml': 
O_WRONLY+O_CREAT+O_TRUNC: 
O_RDWR : 819);                                                

callp write(fd: %addr(xmlEntrada)+2: %len(xmlEntrada));

Answer 1

The English RPG manual calls this the 'Length-Prefix'. This is 2 bytes for a variable between 1 and 63353 bytes, and 4 bytes for larger variables. Change the write() to:

write(fd: %addr(xmlEntrada: *DATA): %len(xmlEntrada));

and let the compiler determine the length-prefix size.

If on an earlier release, try

write(fd: %addr(xmlEntrada)+4: %len(xmlEntrada));