Description
bool 
oci_lob_copy ( OCI-Lob lob_to, OCI-Lob lob_from [, int length] )
     Copies a large object or a part of a large object to another large object. 
     Parameter length indicates the length of data to
     be copied. Old LOB-recipient data will be overwritten.
    
     If you need to copy a particular part of a LOB to a particular position of
     a LOB, use oci_lob_seek() to move LOB internal pointers.
    
     Returns TRUE on success or FALSE on failure.