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Create: 2021-02-05 Update: 2025-07-01 19:08:33

SQL QuickStart Guide (2015)
Автор: Walter Shields
Количество страниц: 84

Повсеместное распространение больших данных означает, что сейчас более чем когда-либо существует острая потребность в быстром и эффективном хранении, доступе и понимании содержимого массивных баз данных. SQL - это основополагающий язык программирования, который составляет основу современного управления данными и их интерпретации. SQL QuickStart Guide идеально подходит для тех, кто хочет улучшить свои перспективы карьерного роста и для разработчиков, стремящихся расширить свои возможности в программировании.

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Bitcoin is built on a distributed digital record called a blockchain. As the name implies, blockchain is a linked body of data, made up of units called blocks that contain information about each and every transaction, including date and time, total value, buyer and seller, and a unique identifying code for each exchange. Entries are strung together in chronological order, creating a digital chain of blocks. “Once a block is added to the blockchain, it becomes accessible to anyone who wishes to view it, acting as a public ledger of cryptocurrency transactions,” says Stacey Harris, consultant for Pelicoin, a network of cryptocurrency ATMs. Blockchain is decentralized, which means it’s not controlled by any one organization. “It’s like a Google Doc that anyone can work on,” says Buchi Okoro, CEO and co-founder of African cryptocurrency exchange Quidax. “Nobody owns it, but anyone who has a link can contribute to it. And as different people update it, your copy also gets updated.”

SQL QuickStart Guide (2015)

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