Welcome to EssentialSQL
This site is all about learning SQL Server. My goal is to help you understand SQL, so you can take your database skills to the next level!
The articles on this site are aimed at teaching you how to use SQL to query SQL Server databases. I cover beginner and advanced topics.
Some of my more popular items include:
This site is meant to answer the most often asked question – I want to learn SQL, but I don’t know where to start.
Before we get too far, let me introduce myself.
I’m Kris Wenzel
I’ve been working with databases over the past 28 years.
In fact, I’ve worked as a developer, analyst, and DBA during those times.
I’ve gotten to really know how to use databases as well as empathize with those that don’t.
I really get this stuff. I have a degree in Computer Engineering from the University of Michigan. I’m passionate about computer systems and want to share a part of that with you.
Whether you’re an IT professional or someone in business that wants to harness the power of SQL to rock at their job, I can help.
But this is about YOU learning how to write database joins. So, let’s get to it.
On this site can learn so really exciting topics, including:
- Combine Tables using Joins, Subqueries, and Set Operators
- Common Questions
- Common Table Expressions
- Data Modeling
- Data Modification
- Data Types and Functions
- How to Use SQL
- Querying, Sorting, Filtering, and Grouping Data
- Stored Procedures
I’m so excited you decided visit my blog!
If at any time you need help, just contact me.
Also, don’t forget to check out the online course resources. They are there to make it easier for you to learn.