Introduction to SQL

Introduction to SQL

Gain a solid working knowledge of the most powerful and widely used database programming language. This course will provide you the skills to write SQL queries to create tables, retrieve data from single or multiple tables, manipulate data in a database, and gather statistics from data stored in a database.
6 Weeks Access / 24 Course Hrs
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Learn the key concepts of SQL (Structured Query Language) the powerful and standard database management query language for relational databases.

SQL (Structured Query Language) is one of the best programming languages for beginning web developers to learn. This course will teach you the basics of designing and writing SQL queries to execute on a practice database. Using a SQL Server Express, you'll learn several real-world applications for SQL so you can put this valuable skill set on your resume.

Enrollment Options:
6 Weeks Access Course Code: sql
Start Dates*Dec 15 | Jan 12 | Feb 09 | Mar 16
*Choose start date in cart
$129.00 USD
3 Months Access Course Code: T9864
No Instructor, Start Anytime
$129.00 USD


In this introductory lesson, you will examine database terms and concepts. Understanding the purpose of a database is foundational to writing efficient SQL queries that retrieve the right data.

In this lesson, you will install SQL Server Express and the SQL Server Management Studio to use throughout the course in your learn-by-doing practices. You will use SQL code to create one of the tables for the practice database in SQL Server.

SQL queries are the statements used to retrieve data from the database. Queries are written in a specific, logical order. In this lesson, you will explore various ways to write SQL queries to retrieve data that meet defined criteria.

SQL queries are defined and written to retrieve data in a certain order. Queries are also written to limit columns and to filter data rows. In this lesson, you will practice writing queries that meet defined criteria and retrieve the expected result-sets.

This lesson is about designing SQL data tables for a database. You will explore the relationship concept and how it is used in an RDBMS. You will define tables that are structured according to RDBMS standards. You will also create the tables to add to your practice database.

In this lesson, you will add data to your newly defined tables. You will explore several methods of adding data to a table and practice writing and executing these query statements. After adding several individual rows to the tables, you will use a SQL query to populate your tables with enough data rows to use in the learn-by-doing practices in this course.

SQL JOIN statements are used to retrieve data from more than one table. In this lesson, you will practice writing JOIN statements that retrieve data from tables that have a relationship between their PKs and FKs.

In this lesson, you will continue writing JOIN statements that retrieve data result-sets from more than one table. You will also examine how and when to use SQL subquery statements to retrieve data from multiple tables. You will practice defining and writing JOIN and subquery queries.

The quality of the data in the database depends on its integrity, including the concepts of data accuracy and consistency. In this lesson, you will explore writing queries to maintain the database so that it is up to date with data that is accurate, consistent, and has integrity.

In this lesson, you will examine the concept of aggregate functions and how they are used in query statements to examine multiple rows. Aggregate functions are a method of retrieving summarized data that is useful for analysis.

SQL views are an important concept in database design and in using databases. In this lesson, you will explore designing and writing queries to create views. You will also explore the reason they are valuable for database security and database access.

Constraints are one way to maximize the integrity of the database and minimize the opportunity for user error. Indexes are used for increasing the performance of a data query. In this lesson, you will explore both these concepts.



Hardware Requirements:

  • This course must be taken on a PC. Macs are not compatible.
  • Dual monitors are helpful but are not required.

Software Requirements:

  • PC: Windows 8 or later.
  • Browser: The latest version of Google Chrome or Mozilla Firefox are preferred. Microsoft Edge and Safari are also compatible.
  • Adobe Acrobat Reader.
  • Software must be installed and fully operational before the course begins. Student will install the required software in the course.


  • Email capabilities and access to a personal email account.
  • Necessary rights (local administrative rights) to install programs on the computer.


There are no prerequisites to take this course.

Instructional Material Requirements:

The instructional materials required for this course are included in enrollment and will be available online.

  • SQL Server Express
  • SQL Server Management Studio


Mava Wilson, Ph.D., is a professor with more than 28 years of teaching experience. While she specializes in Information Systems (IS), she has taught several computer science topics, including basic computer literacy, programming, database design, and SQL. She holds a Ph.D. and master's degree in computing technology from Nova Southeastern University, as well as a bachelor's in administrative systems from Radford University.


It was a great class! It not only gave me the knowledge of SQL, but it also improved my abilities in other applications such as MS Access and MS Excel. The instructor presented the subject matter in a perfect balance of technical and practical. It was evident to me she has educational and in-the-field expert experience. She is also personable and helpful.

The course gave me a 'challenging' introduction to SQL. It introduced two types of databases that I had not previously used:Microsoft Access and SQL Query 7. The examples and assignments reinforced what had been taught in previous lessons. Thank you. I not only learned a great deal but had a good time.

Very nice introduction to SQL. This helped me gain a better basic understanding of things I'd been tampering with for several years. I could probably have saved myself many frustrating hours having taken a course like this a couple years back.

I was impressed with this class. After reading one of the discussion responses that I was actually doing intermediate to advanced work with SQL and understanding it, is a huge compliment to the instructor. I have never been on Access or done any work with any other databases before either. I have since gone onto my home computer and done a lot of work setting up databases with the help of this course. Thank you and I will definitely be taking more and taking the instructor’s advice on what to take in the future. Thank you again for a great class. After being unemployed for a year it is great to have something to make me feel good!