Applies To
OBlob
OClob
OBfile
Description
Sets the total amount to be read or written for multiple chunk Read and Write
operations (polling). A value of zero means that polling will not be used. This
attribute is read/write at runtime.
Usage
void SetPollingAmount(unsigned long amount) const throw(OException)
Arguments
amount
Total amount to be read or written for multiple chunk Read and Write operations.
Remarks
This value is expressed in bytes for OBlob/OBFILE or characters for OClob. It
is set prior to beginning a multiple chunk read or write operation. After it is
set, a series of Read or Write operations must be issued until LOB GetStatus no longer returns OLOB_NEED_DATA .This occurs when the PollingAmount bytes or
characters have been read. Attempting to do other LOB operations before the
end of the polling operation will result in an error.