Gets or sets the 1-based offset into the LOB/BFile for the next Read or Write
operation. This property is read/write at runtime.
offsetbytes = OraBFile.Offset
OraBFile.Offset = offsetbytes
offsetbytes = OraBlob.Offset
OraBlob.Offset = offsetbytes
offsetchars = OraClob.Offset
OraClob.Offset = offsetchars
This value is expressed in of bytes for OraBlob/OraBFILE or characters for
OraClob. The default value is 1. Setting this value to zero will raise an error.
When the PollingAmount property is not zero (polling is enabled), the Offset property can only be
set before the first Read or Write, or after the current polling operation has