What is the relation between database and instance?
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How can you determine if the sqlnet process is running for sqlnet v1? How about v2?
What is the finger command?
Is it necessary to have database in archive log mode in configuration dataguard , if yes then why?
Which date function is used to find the difference between two dates?
What are bind variables and why are they important?
What are database skills?
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What is the most common database language that a db administrator needs to know?
Discuss row chaining, how does it happen?