September 2017
Beginner to intermediate
412 pages
8h 55m
English
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Summary
This chapter discussed various organizational processes used to prepare data for analysis. When used in computer programs, each data value is assigned a data type, which characterizes the data and defines the kind of operations that can be performed upon it.
When stored in a relational database, data is organized into tables, in which each row corresponds to one data point, and where all the data in each column corresponds to a single field of a specified type. The key field(s) has unique values, which allows indexed searching.
A similar viewpoint is the organization of data into key-value pairs. As in relational database tables, the key fields must be unique. A hash table implements the key-value paradigm with a hash function that determines ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.