Book Image

Learn SQL Database Programming

By : Josephine Bush
5 (1)
Book Image

Learn SQL Database Programming

5 (1)
By: Josephine Bush

Overview of this book

SQL is a powerful querying language that's used to store, manipulate, and retrieve data, and it is one of the most popular languages used by developers to query and analyze data efficiently. If you're looking for a comprehensive introduction to SQL, Learn SQL Database Programming will help you to get up to speed with using SQL to streamline your work in no time. Starting with an overview of relational database management systems, this book will show you how to set up and use MySQL Workbench and design a database using practical examples. You'll also discover how to query and manipulate data with SQL programming using MySQL Workbench. As you advance, you’ll create a database, query single and multiple tables, and modify data using SQL querying. This SQL book covers advanced SQL techniques, including aggregate functions, flow control statements, error handling, and subqueries, and helps you process your data to present your findings. Finally, you’ll implement best practices for writing SQL and designing indexes and tables. By the end of this SQL programming book, you’ll have gained the confidence to use SQL queries to retrieve and manipulate data.
Table of Contents (24 chapters)
Section 1: Database Fundamentals
Section 2: Basic SQL Querying
Section 3: Advanced SQL Querying
Section 4: Presenting Your Findings
Section 5: SQL Best Practices

Querying a Single Table

In this chapter, you will learn how to query a single table. This includes learning how to use the SQL SELECT statement and the FROM, WHERE, and ORDER BY clauses. You will also learn how to tell which index your query is using and if you may need additional indexes. By the end of this chapter, you will be able to understand how to query data using the SELECT statement and the FROM clause. You will also learn how to limit the results with a WHERE clause, how to use an ORDER BY clause to return results in a specified order, and how to see information about what indexes are being used or may be needed.

In this chapter, we will cover the following topics:

  • Using the SELECT statement and FROM clause
  • Using the WHERE clause
  • Using the ORDER BY clause
  • Using indexes with your queries

Let's get started!