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Course Description

This instructor-led 2-day SQL training course is designed for students new to writing SQL queries. A typical student will need to learn SQL to build applications or to generate business reports. For the most part, the SQL learned in the course is applicable to all major databases. In the few cases in which there are differences between the databases, these differences will be pointed out.

Class Goals

  • Understand how relational databases work
  • Learn to use SQL to output reports
  • Learn to write queries getting data from multiple tables

Target Audience

Individuals who need to learn the basics of SQL to extract data from various types of databases or who need to understand the basics of programming for use with other programming languages.

Course Prerequisites

A programming background will not be required although it would be important that attendees are very familiar with using computers.

NB: You will need to bring a laptop for course attendance. Minimum spec required 4GB RAM and wireless connectivity. You will be required to have Java installed prior to attendance

Course Content

1. Relational Database Basics

A. Brief History of SQL

B. Relational Databases

  • Tables
  • Rows
  • Columns
  • Relationships
  • Datatypes
  • Primary Keys
  • Foreign Keys
  • Relational Database Management System

C. Popular Databases

  • Commercial Databases
  • Popular Open Source Databases
  • Valid Object References

D. SQL Statements

  • Database Manipulation Language (DML)
  • Database Definition Language (DDL)
  • Database Control Language (DCL)

2. Simple SELECTs

A. Introduction to the Northwind Database

B. Some Basics

  • Comments
  • Whitespace and Semi-colons
  • Case Sensitivity

C. SELECTing All Columns in All Rows

D. Exploring the Tables

E. SELECTing Specific Columns

F. Sorting Records

  • Sorting By a Single Column
  • Sorting By Multiple Columns
  • Sorting By Column Position
  • Ascending and Descending Sorts

G. The WHERE Clause and Operator Symbols

  • Checking for Equality
  • Checking for Inequality
  • Checking for Greater or Less Than
  • Checking for NULL

H. Using the WHERE clause to check for equality or inequality

I. Using the WHERE clause to check for greater or less than

J. Checking for NULL

K. Using WHERE and ORDER BY Together

L. The WHERE Clause and Operator Words

  • The BETWEEN Operator
  • The IN Operator
  • The LIKE Operator
  • The NOT Operator

M. More SELECTs with WHERE

N.Checking Multiple Conditions

  • AND
  • OR
  • Order of Evaluation

O. Writing SELECTs with Multiple Conditions

3. Advanced SELECTs

4. Subqueries, Joins and Unions

See FULL Course Content

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