Back to articles list Articles Cookbook
5 minutes read

Course of the Month: INSERT, UPDATE, and DELETE in PostgreSQL

Do you want to be a data engineer or data analyst? Do you work with databases daily and need to expand your skills with the basics of data manipulation? You've come to the right place. For June 2023, our SQL course of the month is PostgreSQL INSERT, UPDATE, and DELETE Commands! Learn SQL for FREE!

PostgreSQL INSERT, UPDATE, and DELETE Commands

How do you get this free PostgreSQL course in June?

  1. Create a free account or log in if you already have one.
  2. Start the course. You will have free access to its content until the end of the month.

What Are the INSERT, UPDATE, and DELETE Commands?

These are very useful SQL commands. You may have already heard about, for example, SELECT, INSERT, UPDATE, and DELETE are similar types of SQL commands.

The SELECT command lets you retrieve data from a database, filter it, and perform calculations on it. INSERT, UPDATE and DELETE let you modify data in tables.

Need to add a new row to a table? Use INSERT. If you want to know more about this command, check out Andrew's great article "What Is the INSERT Statement in SQL?"

The UPDATE command helps you modify existing data in a table. You can learn more about this command in "What Is the UPDATE Statement in SQL?"

Finally, DELETE deletes data from a database.

As simple as it may seem, you need to know how to use these commands and put them into practice properly. Therefore, it is important to find the right resource and know these commands well.

In computer programming, the acronym CRUD – create, read, update, and delete – describes the four basic operations performed on data. The four SQL statements SELECT, INSERT, UPDATE and DELETE let you perform these four basic operations on data in SQL databases.

These commands are used often by people working with databases for monitoring and changing database structure and content. However, they are much more common in SQL queries that are part of some applications or of larger scripts that automatically change data in databases.

Knowing INSERT, UPDATE, and DELETE is essential for software engineers, database administrators, data engineers, and anyone who works on the technical side of databases. But even if you are not one of them – if you work as an analyst, for example – you still need to know the INSERT, UPDATE, and DELETE commands. These are just the basics of working with relational databases.

What Will You Learn in This Course?

The course consists of 80 interactive exercises you can do at your own pace, from anywhere, and at any time. It is divided into four parts. Completing all of them takes you about 8 hours.

Of course, we don't recommend doing the entire course at once. Spread out the learning over time and plan it well. You can find some valuable tips on learning more effectively in these articles: "How to Learn SQL Faster," and "How to Keep Focused While Learning SQL,".

Have I mentioned our SQL course of the month, like all online SQL courses at, is interactive? I am not talking about any unnecessary video clips, music, or other "distractions" you may find on other SQL training platforms. Our courses are interactive because you put the theory you learn into practice right away.

You learn about a particular SQL problem and get practical tasks. You write SQL queries in our online console and see how they run. If you make a mistake somewhere, you see what you need to work on immediately. You can use hints for more difficult tasks.

You only need an Internet connection and your favorite browser to study with us. We take care of the rest. It really can't be easier or better!

PostgreSQL INSERT, UPDATE, and DELETE Commands

If you decide to take this great online PostgreSQL course, you will learn how to:

  • Work with PostgreSQL INSERT, UPDATE, and DELETE
  • Deal with auto-filling values and combine PostgreSQL DML (Data Manipulation Language) commands with IDENTITY, SEQUENCE, and NEWID().
  • Combine PostgreSQL DML commands with NULL values.
  • Combine PostgreSQL DML commands with JOIN functions.
  • Update PostgreSQL data using default values in columns.

Do you want to learn even more about PostgreSQL? This course is part of our SQL from A to Z in PostgreSQL track. There, you find everything you need to become a PostgreSQL expert! Check it out!

Who Should Take This Course?

We created this PostgreSQL course for aspiring database administrators (DBAs) who are looking for a good learning resource on how to manipulate data in databases. Software testers and programmers working with databases will also get a lot out of this course.

Are you a business analyst using PostgreSQL to create reports and summaries? The course "PostgreSQL INSERT, UPDATE, and DELETE Commands" is useful to anyone who'd like to get the hang of PostgreSQL DML skills.

PostgreSQL INSERT, UPDATE, and DELETE Commands

After completing the exercises in this course, you’ll receive a PDF certificate. You can also publish a certificate of completion on your LinkedIn profile. Check out how easy it is to do so in our short guide.

With these new skills, you may start looking for a new job. However, you do not have to change employers. If you show your boss what you can do, you may get a raise or a bonus!

Free PostgreSQL Course for June 2023: INSERT, UPDATE, and DELETE Commands in PostgreSQL

Hopefully, after reading this article, you already know you should learn the INSERT, UPDATE, and DELETE commands in PostgreSQL. If you are still hesitating, keep in mind you are not risking anything. Until the end of the month, this great interactive SQL course is completely free! There is no catch here; you just log in and learn.

You may be wondering what Database Jobs to Choose in 2023. You can also learn How to Install PostgreSQL on Windows 10 in 5 Minutes so you can harness the power of PostgreSQL in your projects.

Remember that now Learning SQL in Your Native Language is Finally Possible! Check also our All Forever Package - The most comprehensive SQL training bundle!

Start learning today!