1-Regarding the example I only add a GUIDblob field, string(16) to the customer table and a File to store the blobs.
The error is because of the memo field, no doubt.
Attached goes the modified example.
2-Ive made an android app using Basic4Android, the app is now consuming a NT web service without problem using XML, no problem to use Json.
The app, when connected reads a database, for each record on this database the user has to take a picture, this may be done disconnected, Im using Sqlite for store the image as a blob.
Then when the app can be connected again the app needs to update the server database records with the taken pic.
Then I need a way to send the Sqlite blob to the NTwebservice and store it in the database.