The SQL Workshop

4. The SELECT Statement

Overview

This chapter illustrates how to query data from a database, and how we can order them. By the end of this chapter, you will be able to select a specific number of columns, order and sort results, use naming aliases with the AS clause, filter your search results using the LIMIT and DISTINCT keywords, and combine and use SELECT with mathematical operations.

Introduction

So far, whenever we have wanted to see the results, we have used the Select * syntax either by entering that query directly, or by generating it using the appropriate option in the application's menu. This displayed the entire table. However, when we want to retrieve data from the database, we are often not interested in the entire dataset; ...