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How to avoid invalid objects in Oracle when restoring the database

EXPERT RESPONSE FROM: Brian Peasland1

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QUESTION POSED ON: 05 June 2009
Why is it that when I restore my Oracledatabase, some of the function/procedures are invalid objects?

If you performed a full restore, then you should not have invalid objects in Oracle. When you do a partial restore, you may be dropping tables (during the restore operation) that are needed by the function or procedure. The object that depended on this table is then made invalid. Once the table is restored, the object does not become valid until you recompile it, or someone accesses the object and Oracle recompiles it for you.

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