Data Private Public On-Demand

Introduction to SQL (SQL101)

2 days
SQLMySQLMicrosoft SQL Server

Learn SQL fundamentals, write SELECT queries, filter and combine relational data, use aggregates and CASE logic, and practice with the Northwind database.

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$890.00
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$99.90 or 2 vouchers
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  • Readings, Video Presentations, Exercises
  • Quizzes to knowledge check
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Course Overview

Build a practical foundation in SQL and learn to retrieve useful information from relational databases. This instructor-led course introduces tables, rows, columns, keys, and relationships before guiding you through writing SELECT statements, filtering and sorting results, and handling NULL values.

Using the Northwind sample database, you will practice calculated fields, aggregate functions, grouping, subqueries, joins, unions, and conditional logic with CASE. Exercises throughout the course reinforce each concept and help you develop skills you can apply to real-world data and reporting tasks.

Course Benefits

  • Manage and manipulate your data using SQL.
  • Understand the basics of relational databases.
  • Gather data using SELECT queries and then use the WHERE clause to shape the results.
  • Handle complex data retrieval tasks with ease using subqueries, joins, outer joins, and unions.
  • Leverage CASE Statements to retrieve the most relevant data. 
  • Use INSERT, UPDATE, and DELETE to maintain your records.
  • Create insightful, data-driven reports.

Course Outline

  1. Relational Database Basics
    1. Brief History of SQL
    2. Relational Databases
    3. Tables
      1. Rows
      2. Columns
      3. Relationships
      4. Datatypes
      5. Primary Keys
      6. Foreign Keys
      7. Relational Database Management System
    4. Popular Databases
      1. Commercial Databases
      2. Popular Open Source Databases
    5. SQL Statements
      1. Database Manipulation Language (DML)
      2. Database Definition Language (DDL)
      3. Database Control Language (DCL)
  2. Simple SELECTs
    1. Introduction to the Northwind Database
    2. Some Basics
      1. Comments
      2. Whitespace and Semi-colons
      3. Case Sensitivity
    3. SELECTing All Columns in All Rows
    4. Exercise: Exploring the Tables
    5. SELECTing Specific Columns
    6. Exercise: SELECTing Specific Columns
    7. Sorting Records
      1. Sorting by a Single Column
      2. Sorting By Multiple Columns
    8. Ascending and Descending Sorts
    9. Exercise: Sorting Results
    10. The WHERE Clause and Logical Operator Symbols
      1. Checking for Equality
      2. Checking for Inequality
    11. Exercise: Using the WHERE Clause to Check for Equality or Inequality
    12. Checking for Greater or Less Than
    13. Exercise: Using the WHERE Clause to Check for Greater or Less Than
    14. Checking for NULL
    15. Exercise: Checking for NULL
    16. WHERE and ORDER BY
    17. Exercise: Using WHERE and ORDER BY Together
    18. Checking Multiple Conditions with Boolean Operators
      1. AND
      2. OR
      3. Order of Evaluation
    19. Exercise: Writing SELECTs with Multiple Conditions
    20. The WHERE Clause and Logical Operator Keywords
      1. The BETWEEN Operator
      2. The IN Operator
      3. The LIKE Operator
      4. The NOT Operator
    21. Exercise: More SELECTs with WHERE
  3. Advanced SELECTs
    1. Calculated Fields
      1. Concatenation
      2. Mathematical Calculations
      3. Aliases
    2. Exercise: Calculating Fields
    3. Aggregate Functions and Grouping
      1. Aggregate Functions
      2. Grouping Data
    4. Exercise: Working with Aggregate Functions
    5. Selecting Distinct Records
    6. Built-in Data Manipulation Functions
      1. Common Math Functions
      2. Common String Functions
      3. Common Date Functions
    7. Exercise: Data Manipulation Functions
  4. Subqueries, Joins and Unions
    1. Subqueries
    2. Exercise: Subqueries
    3. Joins
      1. Table Aliases
      2. Multi-table Joins
    4. Exercise: Using Joins
    5. Outer Joins
    6. Unions
      1. UNION ALL
      2. UNION Rules
    7. Exercise: Working with Unions
  5. Conditional Processing with CASE
    1. Using CASE
    2. Exercise: Working with CASE
  6. Inserting, Updating and Deleting Records (if time allows)
    1. Inserting Records
    2. Updating and Deleting Records

Delivery Methods

Public Class
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Private Class
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On-Demand
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Class Materials

Each student receives a comprehensive set of materials, including course notes and all class examples.

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