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Introduction to SQL

The Introduction to SQL 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.

Who will the Course Benefit?

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

There are no formal pre-requisites for this Introduction to SQL course, although an understanding of databases and exposure to information technology in general would be useful.

Course Notes

There is an overlap between the content of this 1 day Introduction to SQL course and the content on the suggested 3 day follow-on SQL courses. You may wish to  review the contents of the 3 day SQL courses and attend one of those courses instead if it is found to be more suitable for your needs.

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Learning Objectives

To provide the knowledge and skills needed to retrieve data held in a relational database.

The delegate will learn and acquire skills as follows:

  • Creating SQL statements to query a database table
  • Using standard aggregate functions and related SELECT statement clauses
  • Joining Tables
  • Using basic subqueries and the set operators

Pre-Requisites

Some previous programming or database experience would be useful.

Follow-On Courses

  • Oracle SQL
  • Introduction to MySQL
  • Introduction to MariaDB

Notes:

  • Course technical content is subject to change without notice.
  • Course content is structured as sessions, this does not strictly map to course timings. Concepts, content and practicals often span sessions.

Course Content

Course Contents - DAY 1

Course Introduction

  • Administration and Course Materials
  • Course Structure and Agenda
  • Delegate and Trainer Introductions

Session 1: RELATIONAL DATABASE CONCEPTS

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

Session 2: RETRIEVING DATA WITH THE SELECT STATEMENT

  • The Select Statement
  • The Select and From Clauses
  • Conditions and the Where Clause
  • Other Conditional Operators
  • Logical Operators
  • The Order By Clause
  • Column Aliases
  • Arithmetic Operations
  • Precedence of Operators

Session 3: AGGREGATE FUNCTIONS

  • Overview of Built in Aggregate Functions
  • The Group By Clause
  • The Having Clause

Session 4: JOINING TABLES

  • Overview of Table Joins
  • Inner Joins
  • Table Aliases
  • Outer Joins
  • Self Joins
  • ANSI Join Syntax

Session 5: BASIC SUBQUERIES AND SET OPERATORS

  • Overview of Subqueries
  • Basic Subqueries
  • Set Operators

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Virtual Classroom

Virtual classrooms provide all the benefits of attending a classroom course without the need to arrange travel and accomodation. Please note that virtual courses are attended in real-time, commencing on a specified date.

Virtual Course Dates

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