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Data Analytics & Visualization All-in-One For Dummies
book

Data Analytics & Visualization All-in-One For Dummies

by Jack A. Hyman, Luca Massaron, Paul McFedries, John Paul Mueller, Lillian Pierson, Jonathan Reichental, Joseph Schmuller, Alan R. Simon, Allen G. Taylor
April 2024
Beginner content levelBeginner
832 pages
20h 32m
English
For Dummies
Content preview from Data Analytics & Visualization All-in-One For Dummies

Chapter 1

SQL Foundations

IN THIS CHAPTER

Bullet Relating SQL to the relational model

Bullet Figuring out functional dependencies

Bullet Discovering keys, views, users, privileges, schemas, and catalogs

Bullet Checking out connections, sessions, and transactions

Bullet Understanding routines and paths

This chapter offers a brief introduction to the (somewhat complicated) relationship between SQL and the relational database model. The chapter highlights how certain important terms and concepts may have slightly different meanings in the (practical) SQL world as opposed to the (theoretical) relational database world. The chapter also provides some general, all-inclusive definitions for good measure.

SQL and the Relational Model

SQL is a software tool designed to deal with relational database data. It does far more than just execute queries. Yes, of course, you can use it to retrieve the data you want from a database using a query. However, you can also use SQL to create and destroy databases, as well as modify their ...

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Publisher Resources

ISBN: 9781394244096Purchase Link