Retrieving binary files from SQL database using Web Services

Hello Experts Exchange. I need to create a Web Service in VB to download files in jpg, or png, or pdf format from a database for my web application. I have the insert part working via web services but I'm having problem with the download part.
Attached there is a screenshot of the table that I'm currently using.
I hope to hear from you soon.

Redatabase
Regards.
AdriBovetAsked:
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ste5anSenior DeveloperCommented:
Non of your columns can be NULL, otherwise your data model has problem. Cause it makes no sense to insert files of the size zero.

hmm, have you considered using FILESTREAM?

And for the rest: Please post a concise and complete example.. Cause "having problem with the download part" without code (sample) and error messages is pretty vague.
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