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Discuss row chaining, how does it happen? How can you reduce it? How do you correct it?
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What do you mean by oracle dba?
When should an artificial (or derived) primary key be used?
How many types of dba are there?
How many redo logs should you have and how should they be configured for maximum recoverability?
What skills does a dba need?
How do I become a data manager?
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What skills do you need to be an administrator?
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Give one method for transferring a table from one schema to another?
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What is dump destination? What are bdump, cdump and udump?
Oracle General 
