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What are MD_ tables in Oracle 12c database? What is their purpose?

Andre PannellNov 14 2013 — edited Nov 14 2013

I just set up an Oracle 12c database with the purpose of migrating an existing Oracle 11.2.0.2 database. Our application developers are a bit confused when it comes to the schemas suddenly having MD_ tables they did not create. Any help is appreciated.

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Locked on Dec 12 2013

Added on Nov 14 2013

#12c, #database, #sql-developer

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