Introduction to SQL — A 1 day course

Enquire about this course

 Open Public Course Closed In-House Course

Synopsis

This course is designed to give delegates practical experience in using ANSI standard SQL. As it is a generic course, some of the differences between different vendors' implementations will be noted.

Note

There is an overlap between the content of this one day Introduction to SQL course and the content on the suggested follow-on Oracle and MySQL/MariaDB courses. You may wish to review the content of the three day Oracle SQL course, the three day Introduction to MySQL course or the three day Introduction to MariaDB course and if more suitable to your training needs attend one of those courses rather than this 1 day Introduction to SQL course.

Objectives

To provide the knowledge and skills needed to retrieve and update data held in a relational database. The delegates will practise:

• Creating SQL statements to query a database table
• Writing SQL statements to retrieve data from multiple tables
• Using standard aggregate functions
• Implementing Subqueries

Suitable For

Anyone who needs to understand and use SQL to manipulate a database.

Follow-On Courses

• Oracle SQL
• Introduction to MySQL
• Introduction to MariaDB

Prerequisites

There are no formal pre-requisites, although an understanding of databases and exposure to information technology in general would be useful. Some previous programming or database experience would be useful.

Publicly scheduled dates, locations, and prices

Contents

Relational Database Concepts

• What is a Relational Database?
• Tables, Rows and Columns
• Indexes, Primary Keys and Foreign Keys
• Data Types
• The Data Dictionary
• Getting Started

SQL Language Essentials

• The Select Statement
• The Select and From Clauses
• Conditions and the Where Clause
• The Order By Clause
• Arithmetic Operations
• Column Aliases
• Practical Exercises

Summarising and Grouping Data

• Aggregate Functions
• The Group By Clause
• The Having Clause
• Practical Exercises

Querying Multiple Tables

• Joining Tables
• Inner Joins
• Column Qualification and Table Aliases
• Outer Joins
• Self Joins
• Alternative Join Syntax
• Practical Exercises

Additional SQL Features

• Combining Queries
• The Union, Intersect and Minus Operators
• Basic Subqueries
• Practical Exercises