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You have a table phone_book with 2 billion rows in it. Adding an index on last_name will require a lot of space. If the average last_name is 8 bytes long - you are looking at roughly 16 GB of space for the data portion of the index. Which of the following will help in reducing the size of index space?

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You have a table phone_book with 2 billion rows in it. Adding an index on last_name will require a lot of space. If the average last_name is 8 bytes long - you are looking at roughly 16 GB of space for the data portion of the index. Which of the following will help in reducing the size of index space?






 
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