Processing Attachments Stored in Rich Text Fields
Notes® is primarily a document management system -- not a relational database management system (RDBMS). Because of this, Notes® performs special handling for attachments stored in rich text fields. It stores the attachment data separately from the rich text field data. Currently you can only transfer attachments from Notes® to Notes®; rich text fields with attachments do not store correctly in the target RDBMS's such as DB2® and Oracle.
You can use the Extract File Attachments option to save attachments to files on disk. You can then use LotusScript® to read the files, store their contents in LCFields, and save the LCFields to binary fields in a RDBMS. This level of scripting requires LotusScript® expertise.