OCI-21580
The LOB operation length (value=string) for column (string) must be an even number of bytes.
Cause
An attempt was made to call OCIXStreamInChunkSend with an odd number of bytes for a column flagged as AL16UTF16 or NCLOB.
Action
Correct either the LOB column length or 'column_flag' argument to OCIXStreamInChunkSend call.