Kbase P26991: RDOCOLUMN:VALUE returns unknown in 4GL.
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
6/17/2003 |
|
Status: Unverified
SYMPTOM(s):
Using RDO to obtain contents of a Blob field
RDOCOLUMN:VALUE returns unknown in 4GL.
CAUSE:
RDOCOLUMN:VALUE has the "variant" (VT_VARIANT) COM datatype, which at the time of writing cannot be converted to a valid Progress datatype.
FIX:
Use a wrapper around the RDO Com object to retrieve the Blob and create a (temporary) file in a usable format. Use this file for further processing.