Reads length bytes from the current position of
LOB's internal pointer.
Reading stops when length bytes have been read or
end of the large object is reached. Internal pointer of the large object
will be shifted on the amount of bytes read.
Parameter-Liste
length
The length of data to read, in bytes. Large values will be rounded down to 1 MB.
Rückgabewerte
Returns the contents as a string, Im Fehlerfall wird FALSE zurückgegeben..