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=> The NVL function

=> Which of the following correctly describes how to specify a column alias?

=> Which of the following statements contains an error?

=> What is a SQL view?

=> What types of join algorithms can you have?

=> What is "index covering" of a query?

=> Why can a "group by" or "order by" clause be expensive to process?

=> What is a "trigger"

=> What is a "functional dependency"? How does it relate to database table design?

=> What is a "primary key"?

=> What types of index data structures can you have?

=> What is a "constraint"?

=> What is "normalization"? "Denormalization"? Why do you sometimes want to denormalize?

=> What are the tradeoffs with having indexes?

=> What structure can you implement for the database to speed up table reads?

=> What is the difference between a "where" clause and a "having" clause?

=> What cursor type do you use to retrieve multiple recordsets?

=> What are two methods of retrieving SQL?

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