It seems that a one-mile distance isn’t very long and that a cubic mile isn’t that big if compared with the size of the earth. You may be surprised if I tell you the entire world’s population can fit into a cubic mile of space. The statement is not from me; Hendrik Willem van Loon, a Dutch-American writer, once wrote this in his book.

Teradata is a famous data warehouse product. Over 30 years ago, such a brand name aimed to impress people with its ability to handle massive amounts of data. Today, TB is already the smallest unit many database vendors use when talking about the amount of data they can handle. And PB, even ZB, is often used. It seems that TB is not a big unit, and hundreds of terabytes of data, even a petabyte of data, is not intimidating at all. 

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