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Managing Multimedia and Unstructured Data in the Oracle Database
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This museum has three separate environments. There is a public server on which copies of the digital objects are stored. A subset of metadata is included with these public images. Some of the public images are watermarked, and most are transformed and cropped into a postcard format to make them easier to view by the general public.
The key functions include:
Metadata is loaded into the internal server from a collection management system residing on a separate system. An ODBC based database link is used to transfer the metadata over.

Digital objects that reside on a SAN are loaded in and where possible matched to the loaded metadata. Multiple versions of the same digital object are merged together and then one is marked as the master.
A weekly job pushes selected digital objects to the demilitarized zone (DMZ) site for public access. The firewall is one-way enabling the internal server to push data to the DMZ. The DMZ site cannot access the internal server.
Internal users can use a number...
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