Replication of content on block-level

Hi!
Just wondering if there is any utility that is available either within the database or as a 3rd party tool that can be used for replication of content from a File Server (ServerA) into the database (ServerB). What we're doing is backing up unstructured content from a File Server and storing it inside the Oracle Database. But we're trying to avoid having to copy over the entire file after the initial backup occurs, especially if only 1K of a 5MB file changes.
I see multiple 3rd party tools that do this very well from a File Server to another File Server, and also from a Database to a File Server, but haven't seen anything existing for a File Server to a Database.
If anyone has some information, anything at all, I'd be grateful to hear about it.
LJ

You can use a materialized view to ensure database integrity. Check for constraint violations in the MV when you commit the form.
need some help

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Replication of content on block-level

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