39766, 0000, "invaid stream specified for column array conversion"
*Cause: A stream must be loaded and reset before used again in a
column-array-to-stream conversion. This error is issued if
another stream has subsequently been converted before the
specified stream has been loaded, or if the latest load of this
stream returned OCI_ERROR.
*Action: Don't convert into a previous stream before it is loaded. Also,
when load stream returns OCI_ERROR, the stream must be loaded
again to insure any remaining information in the stream is loaded.
The stream must be loaded even if the last or only row was in
error. There may be error information in the stream that needs
to be sent to the server.