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

Chapter 12

  1. A stored query.
  2. Yes, depending on the query in the view. You can update, insert, and delete from a view if it queries one table. You can insert and update from a view if queries multiple tables, but you can't delete.
  1. It lets you store a single data value that can be used during your session's queries.
  2. One of two ways:
  • SET @varname = value;
  • SET @varname := value;
  1. A set of SQL statements stored in the database.
  2. The main difference between a variable and parameter is that parameters are static throughout the procedure, but a variable can be changed during the stored procedure.
  4. These are a way to extend the functionality of MySQL, and they work much the same other built-in functions work.
  5. A set of actions that run after you insert, update, or delete data in a table.
  6. Allow you to store temporary query...