What are the roles and responsibilities of oracle dba?
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How to uncatalog backup?
When using oracle export/import what character set concerns might come up? How do you handle them?
What is the difference between truncate and delete? How would a full table scan behave after?
Describe hit ratio as it pertains to the database buffers. What is the difference between instantaneous and cumulative hit ratio and which should be used for tuning?
How do I become a database administrator?
What is the difference between truncate and delete? Why is one faster?
What do you understand by the term 'normalization'? Explain the various modes of normalization?
How many redo logs should you have and how should they be configured for maximum recoverability?
If you see contention for library caches how you can fix it?
What operator tests column for the absence of data?
What is the relation between database and instance?
What should a dba know?