SQL Refresher Course

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Basic course of 4 hours free

Completion certificate

AI tutor

Practical activities

Online and lifelong course

What will I learn?

Make your SQL skills strong again with our SQL Brain Sharpening Course. This course is for people who work with computers and want to know more about how to use database. You will learn how to plan database, how to write good SQL questions, and how to make your database run fast. You will also learn how to change data easily, how to ask hard questions, and how to keep up with the new things in SQL. This short, good course will help you solve real problems and make sure you stay on top of your game.

Weekly live mentoring sessions

Count on our specialists to assist you weekly

Imagine learning something while clearing your doubts with professionals already in the field? At Apoia, this is possible

Access open rooms with various market professionals


Expand your network


Exchange experiences with specialists in different areas and tackle your professional challenges.

Learning outcomes

Strengthen your practical skills listed below

Learn how to plan database well: Make good plans with primary and foreign keys.

Write hard questions: Use CTEs, window functions, and questions inside questions.

Make SQL run fast: Use indexing and look at how the computer is running the questions.

Change data easy: Do big changes and take care of records.

Do SQL the best way: Make sure it is safe and use the newest things in SQL.