Название: Head First SQL: A Learner's Guide to Querying and Managing Data, 2nd Edition (Third Early Release)
Автор: Kimberly Fessel
Издательство: O’Reilly Media, Inc.
Год: 2024-05-07
Страниц: 700
Язык: английский
Формат: epub
Размер: 29.0 MB

What will you learn from this book?
Do you have an abundance of data but don't know how to make sense of it? Do you want to gain useful insights from your data, but you're not sure where to begin? Mining data is a vital, well-paying skill, and SQL provides the most fundamental way to query and manage data. But learning SQL can be intimidating. This thoroughly revised book teaches you SQL fundamentals in a painless and enjoyable manner. With the Head First series' hands-on, conversational style, you'll quickly grasp SQL concepts, then move to intermediate topics, including stored procedures and cloud databases. You'll gain the knowledge, skills, and confidence necessary to get the most out of your data with SQL.

Why does this book look so different?
If you've read a Head First book, you know what to expect: a visually rich format designed for the way your brain works. If you haven't, you're in for a treat. With this book, you'll learn about SQL through a multisensory experience that engages your mind—rather than a text-heavy approach that puts you to sleep.

You’re learning great things about how you can organize the information from multiple documents into categories of data and arrange them in a grid-like table. You may have worked with data like this in software for spreadsheets such as Excel or Google Sheets. In this book, we’ll use SQL to create tables as well as find the information we put in them. So what is SQL? SQL is a programming languages for storing and retrieving tabular data, and by “tabular,” we just mean information that you can write down in a table with rows and columns. Even though it was introduced in the 1970s, SQL still remains very popular in today’s workplace. You can pronounce “SQL” by spelling it out as “S.Q.L.” or by making it sound like the word “sequel.” It’s often described as standing for Structured Query Language, though its origin story differs from that slightly.

You can code in SQL through a variety of platforms and tools. Be sure to read the introduction of this book and check out Appendix II to get an application to work with SQL on your computer.