how Documents are saved in sql server using navision

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Posted on by usmanimtiaz

hello everyone, I've a client who wants to retrieve documents from sql server using C# but has no idea how they saved it in the first place, all they know is that they used navision and hp scanner.

I want to know if anyone can tell me how navision save documents in the database? (field in navison database is content which is type image and stores blob) I tried to get those bytes and retrun them as pdf but it didnt work.

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Stefano Demiliani 37,166 Most Valuable Professional on at

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Do you mean that you want to store BLOB fields in NAV? Standard NAV attachment table (attachments to document) stores links to external files, not BLOB. I'm not a huge fan of saving BLOB inside the database (it generates inefficiency) but if you need that my suggestion is to create a custom table with the primary key of your document in NAV and a blob field instead of adding a BLOB field to the standard document table. For example, to save the PDF of a Sales Order, instead of adding a BLOB field to the Sales Header table I suggest to create a new "Sales Order PDF" table with fields like Document Type, Document No, BLOB and then insert the pdf on this new table.

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