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Oracle Copy Schema Tips

Oracle Tips by Burleson Consulting

September 9, 2011

Question:  I want to move all db objects from one schema to another schema. 

How do I copy an Oracle schema?

Answer:  To clone a schema, I would use either of these methods:  

  • Copy schema with Data Pump export/import:  Use expdp to export the old schema and import into the new schema using impdp with the "remap schema" parameter.  The Rampant Oracle Utilities book has full examples of copying a schema.
  • Copy schema with CTAS:  Create the new schema owner, use CTAS to copy the tables, and then punch & re-add constraints and indexes using dbms_metadata.  Parallelized CTAS is a faster way to copy a schema than using Data Pump, but the copy steps are more complex.  

See the link for a working example of a script to copy an Oracle user.


 
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