June 2019
Beginner to intermediate
360 pages
10h 55m
English
Content preview from Big Data Simplified
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100 | Big Data Simplied
Account balances are another such example. It is not ideal to update a customer’s account bal-
ance in one place and not in another, allowing the customer to then exceed the allowable balance.
On the other hand, think of something like the information in a product catalogue. If we add
a new product to the catalogue, do we really need to hold all of the servers locked for access until
they have all been updated or can we update the servers one at a time with the new product?
Well, that does mean that a customer in Los Angeles might actually see the information about
that product before a customer in New Jersey does, but ...
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